MC

0a1b

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 0.1  Incorrect B. pH 1.5  Incorrect C. pH 2.1  Incorrect D. pH 4.9  Correct E. pH 7.5  Incorrect MC

cd3a

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 0.4  Incorrect B. pH 1.4  Incorrect C. pH 2.3  Incorrect D. pH 4.3  Correct E. pH 8.4  Incorrect MC

6e56

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 0.6  Incorrect B. pH 1.1  Incorrect C. pH 2.5  Incorrect D. pH 8.4  Incorrect E. pH 11.2  Correct MC

47f1

Phosphoric acid and its conjugate base, phosphate, is abbreviated Pi and is formed by cells from the hydrolysis of ATP into ADP.

Phosphoric acid is triprotic with pKa values of 2.16, 7.21, and 12.32.

Which one of the following pH values falls outside the optimal buffering rangeof Phosphoric acid?

A. pH 1.5  Incorrect B. pH 7.9  Incorrect C. pH 10.7  Correct D. pH 12.2  Incorrect E. pH 13.3  Incorrect MC

e1e3

Citric acid and its conjugate base, citrate, is an intermediate in the citric acid cycle.

Citric acid is triprotic with pKa values of 3.13, 4.76, and 6.39.

Which one of the following pH values falls outside the optimal buffering rangeof Citric acid?

A. pH 3.7  Incorrect B. pH 4.0  Incorrect C. pH 5.6  Incorrect D. pH 6.9  Incorrect E. pH 10.9  Correct MC

99f4

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 1.0  Incorrect B. pH 4.4  Correct C. pH 7.1  Incorrect D. pH 8.6  Incorrect E. pH 9.4  Incorrect MC

bb74

Ethylenediaminetetraacetic acid and its conjugate base, EDTA, is commonly used in chelation therapy and as a chelating agent in biochemical experiments..

Ethylenediaminetetraacetic acid is tetraprotic with pKa values of 2.00, 2.67, 6.16, and 10.26.

Which one of the following pH values falls outside the optimal buffering rangeof Ethylenediaminetetraacetic acid?

A. pH 1.9  Incorrect B. pH 3.5  Incorrect C. pH 4.4  Correct D. pH 5.7  Incorrect E. pH 9.5  Incorrect MC

7fee

Citric acid and its conjugate base, citrate, is an intermediate in the citric acid cycle.

Citric acid is triprotic with pKa values of 3.13, 4.76, and 6.39.

Which one of the following pH values falls outside the optimal buffering rangeof Citric acid?

A. pH 3.6  Incorrect B. pH 4.7  Incorrect C. pH 5.7  Incorrect D. pH 7.1  Incorrect E. pH 11.8  Correct MC

c1d1

Ethylenediaminetetraacetic acid and its conjugate base, EDTA, is commonly used in chelation therapy and as a chelating agent in biochemical experiments..

Ethylenediaminetetraacetic acid is tetraprotic with pKa values of 2.00, 2.67, 6.16, and 10.26.

Which one of the following pH values falls outside the optimal buffering rangeof Ethylenediaminetetraacetic acid?

A. pH 1.9  Incorrect B. pH 6.1  Incorrect C. pH 7.0  Incorrect D. pH 8.8  Correct E. pH 10.1  Incorrect MC

a67d

Phosphoric acid and its conjugate base, phosphate, is abbreviated Pi and is formed by cells from the hydrolysis of ATP into ADP.

Phosphoric acid is triprotic with pKa values of 2.16, 7.21, and 12.32.

Which one of the following pH values falls outside the optimal buffering rangeof Phosphoric acid?

A. pH 1.8  Incorrect B. pH 2.5  Incorrect C. pH 7.6  Incorrect D. pH 9.4  Correct E. pH 11.9  Incorrect MC

b642

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 0.4  Incorrect B. pH 1.6  Incorrect C. pH 1.9  Incorrect D. pH 6.0  Incorrect E. pH 11.3  Correct MC

02bb

Phosphoric acid and its conjugate base, phosphate, is abbreviated Pi and is formed by cells from the hydrolysis of ATP into ADP.

Phosphoric acid is triprotic with pKa values of 2.16, 7.21, and 12.32.

Which one of the following pH values falls outside the optimal buffering rangeof Phosphoric acid?

A. pH 1.9  Incorrect B. pH 2.4  Incorrect C. pH 8.0  Incorrect D. pH 9.8  Correct E. pH 12.5  Incorrect MC

8120

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 2.0  Incorrect B. pH 2.2  Incorrect C. pH 6.0  Incorrect D. pH 9.1  Correct E. pH 12.5  Incorrect MC

1e39

Citric acid and its conjugate base, citrate, is an intermediate in the citric acid cycle.

Citric acid is triprotic with pKa values of 3.13, 4.76, and 6.39.

Which one of the following pH values falls outside the optimal buffering rangeof Citric acid?

A. pH 2.8  Incorrect B. pH 3.8  Incorrect C. pH 4.1  Incorrect D. pH 6.6  Incorrect E. pH 11.3  Correct MC

add1

Ethylenediaminetetraacetic acid and its conjugate base, EDTA, is commonly used in chelation therapy and as a chelating agent in biochemical experiments..

Ethylenediaminetetraacetic acid is tetraprotic with pKa values of 2.00, 2.67, 6.16, and 10.26.

Which one of the following pH values falls outside the optimal buffering rangeof Ethylenediaminetetraacetic acid?

A. pH 2.3  Incorrect B. pH 2.6  Incorrect C. pH 3.2  Incorrect D. pH 6.4  Incorrect E. pH 7.9  Correct MC

63d9

Phosphoric acid and its conjugate base, phosphate, is abbreviated Pi and is formed by cells from the hydrolysis of ATP into ADP.

Phosphoric acid is triprotic with pKa values of 2.16, 7.21, and 12.32.

Which one of the following pH values falls outside the optimal buffering rangeof Phosphoric acid?

A. pH 1.9  Incorrect B. pH 2.6  Incorrect C. pH 7.8  Incorrect D. pH 10.5  Correct E. pH 12.3  Incorrect MC

0aa7

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 1.4  Incorrect B. pH 2.7  Incorrect C. pH 4.6  Correct D. pH 11.0  Incorrect E. pH 11.9  Incorrect MC

c242

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 0.3  Incorrect B. pH 1.2  Incorrect C. pH 3.9  Correct D. pH 5.8  Incorrect E. pH 9.6  Incorrect MC

734f

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 1.4  Incorrect B. pH 2.6  Incorrect C. pH 5.0  Correct D. pH 6.6  Incorrect E. pH 8.7  Incorrect MC

c0b0

Ethylenediaminetetraacetic acid and its conjugate base, EDTA, is commonly used in chelation therapy and as a chelating agent in biochemical experiments..

Ethylenediaminetetraacetic acid is tetraprotic with pKa values of 2.00, 2.67, 6.16, and 10.26.

Which one of the following pH values falls outside the optimal buffering rangeof Ethylenediaminetetraacetic acid?

A. pH 2.3  Incorrect B. pH 2.9  Incorrect C. pH 5.5  Incorrect D. pH 6.9  Incorrect E. pH 8.0  Correct MC

0609

Ethylenediaminetetraacetic acid and its conjugate base, EDTA, is commonly used in chelation therapy and as a chelating agent in biochemical experiments..

Ethylenediaminetetraacetic acid is tetraprotic with pKa values of 2.00, 2.67, 6.16, and 10.26.

Which one of the following pH values falls outside the optimal buffering rangeof Ethylenediaminetetraacetic acid?

A. pH 1.8  Incorrect B. pH 3.4  Incorrect C. pH 5.8  Incorrect D. pH 7.7  Correct E. pH 11.3  Incorrect MC

ad89

Ethylenediaminetetraacetic acid and its conjugate base, EDTA, is commonly used in chelation therapy and as a chelating agent in biochemical experiments..

Ethylenediaminetetraacetic acid is tetraprotic with pKa values of 2.00, 2.67, 6.16, and 10.26.

Which one of the following pH values falls outside the optimal buffering rangeof Ethylenediaminetetraacetic acid?

A. pH 2.2  Incorrect B. pH 2.8  Incorrect C. pH 9.8  Incorrect D. pH 11.2  Incorrect E. pH 11.6  Correct MC

69fb

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 1.4  Incorrect B. pH 3.6  Correct C. pH 6.1  Incorrect D. pH 10.5  Incorrect E. pH 12.0  Incorrect MC

60f0

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 0.5  Incorrect B. pH 1.8  Incorrect C. pH 5.0  Correct D. pH 5.9  Incorrect E. pH 10.1  Incorrect MC

d5c5

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 0.1  Incorrect B. pH 1.1  Incorrect C. pH 5.7  Incorrect D. pH 9.6  Incorrect E. pH 11.7  Correct MC

8f3d

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 1.4  Incorrect B. pH 3.0  Incorrect C. pH 3.7  Correct D. pH 6.6  Incorrect E. pH 8.7  Incorrect MC

d201

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 6.1  Incorrect B. pH 7.1  Incorrect C. pH 9.7  Correct D. pH 11.3  Incorrect E. pH 11.9  Incorrect MC

7938

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 1.1  Incorrect B. pH 2.3  Incorrect C. pH 7.5  Incorrect D. pH 8.5  Incorrect E. pH 11.2  Correct MC

ac86

Ethylenediaminetetraacetic acid and its conjugate base, EDTA, is commonly used in chelation therapy and as a chelating agent in biochemical experiments..

Ethylenediaminetetraacetic acid is tetraprotic with pKa values of 2.00, 2.67, 6.16, and 10.26.

Which one of the following pH values falls outside the optimal buffering rangeof Ethylenediaminetetraacetic acid?

A. pH 2.5  Incorrect B. pH 2.9  Incorrect C. pH 7.1  Incorrect D. pH 8.1  Correct E. pH 11.2  Incorrect MC

fbb1

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 1.7  Incorrect B. pH 6.0  Incorrect C. pH 10.0  Correct D. pH 10.6  Incorrect E. pH 11.7  Incorrect MC

cf64

Citric acid and its conjugate base, citrate, is an intermediate in the citric acid cycle.

Citric acid is triprotic with pKa values of 3.13, 4.76, and 6.39.

Which one of the following pH values falls outside the optimal buffering rangeof Citric acid?

A. pH 2.9  Incorrect B. pH 4.0  Incorrect C. pH 5.4  Incorrect D. pH 6.1  Incorrect E. pH 10.7  Correct MC

d70a

Citric acid and its conjugate base, citrate, is an intermediate in the citric acid cycle.

Citric acid is triprotic with pKa values of 3.13, 4.76, and 6.39.

Which one of the following pH values falls outside the optimal buffering rangeof Citric acid?

A. pH 3.4  Incorrect B. pH 5.5  Incorrect C. pH 5.9  Incorrect D. pH 7.1  Incorrect E. pH 11.6  Correct MC

b7d0

Ethylenediaminetetraacetic acid and its conjugate base, EDTA, is commonly used in chelation therapy and as a chelating agent in biochemical experiments..

Ethylenediaminetetraacetic acid is tetraprotic with pKa values of 2.00, 2.67, 6.16, and 10.26.

Which one of the following pH values falls outside the optimal buffering rangeof Ethylenediaminetetraacetic acid?

A. pH 1.9  Incorrect B. pH 2.7  Incorrect C. pH 2.9  Incorrect D. pH 10.8  Incorrect E. pH 11.7  Correct MC

b9ee

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 1.4  Incorrect B. pH 6.1  Incorrect C. pH 7.7  Incorrect D. pH 9.0  Correct E. pH 11.0  Incorrect MC

cf4d

Phosphoric acid and its conjugate base, phosphate, is abbreviated Pi and is formed by cells from the hydrolysis of ATP into ADP.

Phosphoric acid is triprotic with pKa values of 2.16, 7.21, and 12.32.

Which one of the following pH values falls outside the optimal buffering rangeof Phosphoric acid?

A. pH 1.7  Incorrect B. pH 6.3  Incorrect C. pH 7.4  Incorrect D. pH 9.5  Correct E. pH 13.3  Incorrect MC

99f7

Ethylenediaminetetraacetic acid and its conjugate base, EDTA, is commonly used in chelation therapy and as a chelating agent in biochemical experiments..

Ethylenediaminetetraacetic acid is tetraprotic with pKa values of 2.00, 2.67, 6.16, and 10.26.

Which one of the following pH values falls outside the optimal buffering rangeof Ethylenediaminetetraacetic acid?

A. pH 1.1  Incorrect B. pH 4.9  Correct C. pH 5.9  Incorrect D. pH 6.2  Incorrect E. pH 10.9  Incorrect MC

5a8e

Phosphoric acid and its conjugate base, phosphate, is abbreviated Pi and is formed by cells from the hydrolysis of ATP into ADP.

Phosphoric acid is triprotic with pKa values of 2.16, 7.21, and 12.32.

Which one of the following pH values falls outside the optimal buffering rangeof Phosphoric acid?

A. pH 2.7  Incorrect B. pH 4.3  Correct C. pH 6.4  Incorrect D. pH 8.2  Incorrect E. pH 12.7  Incorrect MC

92c7

Ethylenediaminetetraacetic acid and its conjugate base, EDTA, is commonly used in chelation therapy and as a chelating agent in biochemical experiments..

Ethylenediaminetetraacetic acid is tetraprotic with pKa values of 2.00, 2.67, 6.16, and 10.26.

Which one of the following pH values falls outside the optimal buffering rangeof Ethylenediaminetetraacetic acid?

A. pH 1.9  Incorrect B. pH 2.3  Incorrect C. pH 6.3  Incorrect D. pH 8.4  Correct E. pH 9.3  Incorrect MC

5b8c

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH -0.1  Incorrect B. pH 1.6  Incorrect C. pH 2.8  Incorrect D. pH 4.4  Correct E. pH 10.1  Incorrect MC

aea2

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 1.9  Incorrect B. pH 2.5  Incorrect C. pH 5.3  Correct D. pH 7.7  Incorrect E. pH 9.9  Incorrect MC

0745

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 5.0  Correct B. pH 6.1  Incorrect C. pH 7.0  Incorrect D. pH 11.2  Incorrect E. pH 12.4  Incorrect MC

9953

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 1.9  Incorrect B. pH 3.8  Correct C. pH 6.6  Incorrect D. pH 7.3  Incorrect E. pH 11.0  Incorrect MC

dadb

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 1.4  Incorrect B. pH 2.9  Incorrect C. pH 5.7  Incorrect D. pH 9.0  Incorrect E. pH 11.9  Correct MC

538c

Citric acid and its conjugate base, citrate, is an intermediate in the citric acid cycle.

Citric acid is triprotic with pKa values of 3.13, 4.76, and 6.39.

Which one of the following pH values falls outside the optimal buffering rangeof Citric acid?

A. pH 2.2  Incorrect B. pH 3.9  Incorrect C. pH 4.6  Incorrect D. pH 4.9  Incorrect E. pH 7.9  Correct MC

0f2c

Citric acid and its conjugate base, citrate, is an intermediate in the citric acid cycle.

Citric acid is triprotic with pKa values of 3.13, 4.76, and 6.39.

Which one of the following pH values falls outside the optimal buffering rangeof Citric acid?

A. pH 2.7  Incorrect B. pH 3.5  Incorrect C. pH 5.6  Incorrect D. pH 7.3  Incorrect E. pH 11.4  Correct MC

cb23

Ethylenediaminetetraacetic acid and its conjugate base, EDTA, is commonly used in chelation therapy and as a chelating agent in biochemical experiments..

Ethylenediaminetetraacetic acid is tetraprotic with pKa values of 2.00, 2.67, 6.16, and 10.26.

Which one of the following pH values falls outside the optimal buffering rangeof Ethylenediaminetetraacetic acid?

A. pH 1.0  Incorrect B. pH 2.6  Incorrect C. pH 3.9  Correct D. pH 5.4  Incorrect E. pH 7.1  Incorrect MC

d313

Ethylenediaminetetraacetic acid and its conjugate base, EDTA, is commonly used in chelation therapy and as a chelating agent in biochemical experiments..

Ethylenediaminetetraacetic acid is tetraprotic with pKa values of 2.00, 2.67, 6.16, and 10.26.

Which one of the following pH values falls outside the optimal buffering rangeof Ethylenediaminetetraacetic acid?

A. pH 1.9  Incorrect B. pH 2.9  Incorrect C. pH 5.6  Incorrect D. pH 9.0  Correct E. pH 9.3  Incorrect MC

9e61

Ethylenediaminetetraacetic acid and its conjugate base, EDTA, is commonly used in chelation therapy and as a chelating agent in biochemical experiments..

Ethylenediaminetetraacetic acid is tetraprotic with pKa values of 2.00, 2.67, 6.16, and 10.26.

Which one of the following pH values falls outside the optimal buffering rangeof Ethylenediaminetetraacetic acid?

A. pH 2.2  Incorrect B. pH 3.3  Incorrect C. pH 4.7  Correct D. pH 6.4  Incorrect E. pH 11.1  Incorrect MC

7bd0

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 1.3  Incorrect B. pH 3.7  Correct C. pH 7.2  Incorrect D. pH 8.7  Incorrect E. pH 10.1  Incorrect MC

971f

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 2.9  Incorrect B. pH 4.9  Correct C. pH 6.8  Incorrect D. pH 7.7  Incorrect E. pH 11.4  Incorrect MC

7265

Phosphoric acid and its conjugate base, phosphate, is abbreviated Pi and is formed by cells from the hydrolysis of ATP into ADP.

Phosphoric acid is triprotic with pKa values of 2.16, 7.21, and 12.32.

Which one of the following pH values falls outside the optimal buffering rangeof Phosphoric acid?

A. pH 1.9  Incorrect B. pH 5.4  Correct C. pH 7.2  Incorrect D. pH 7.7  Incorrect E. pH 11.8  Incorrect MC

521b

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 1.5  Incorrect B. pH 2.5  Incorrect C. pH 5.1  Correct D. pH 6.1  Incorrect E. pH 7.0  Incorrect MC

f3ea

Phosphoric acid and its conjugate base, phosphate, is abbreviated Pi and is formed by cells from the hydrolysis of ATP into ADP.

Phosphoric acid is triprotic with pKa values of 2.16, 7.21, and 12.32.

Which one of the following pH values falls outside the optimal buffering rangeof Phosphoric acid?

A. pH 6.6  Incorrect B. pH 7.3  Incorrect C. pH 10.5  Correct D. pH 11.9  Incorrect E. pH 12.8  Incorrect MC

ca4c

Citric acid and its conjugate base, citrate, is an intermediate in the citric acid cycle.

Citric acid is triprotic with pKa values of 3.13, 4.76, and 6.39.

Which one of the following pH values falls outside the optimal buffering rangeof Citric acid?

A. pH 2.4  Incorrect B. pH 3.4  Incorrect C. pH 4.4  Incorrect D. pH 6.6  Incorrect E. pH 8.0  Correct MC

7e8b

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 2.4  Incorrect B. pH 3.5  Correct C. pH 7.7  Incorrect D. pH 10.6  Incorrect E. pH 12.0  Incorrect MC

bc73

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 1.9  Incorrect B. pH 4.4  Correct C. pH 6.6  Incorrect D. pH 10.9  Incorrect E. pH 11.8  Incorrect MC

e513

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 1.3  Incorrect B. pH 4.9  Correct C. pH 5.9  Incorrect D. pH 6.8  Incorrect E. pH 9.6  Incorrect MC

fc1b

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 0.7  Incorrect B. pH 1.2  Incorrect C. pH 2.7  Incorrect D. pH 4.7  Correct E. pH 6.6  Incorrect MC

2814

Citric acid and its conjugate base, citrate, is an intermediate in the citric acid cycle.

Citric acid is triprotic with pKa values of 3.13, 4.76, and 6.39.

Which one of the following pH values falls outside the optimal buffering rangeof Citric acid?

A. pH 3.4  Incorrect B. pH 3.9  Incorrect C. pH 5.0  Incorrect D. pH 7.2  Incorrect E. pH 10.8  Correct MC

ac8f

Citric acid and its conjugate base, citrate, is an intermediate in the citric acid cycle.

Citric acid is triprotic with pKa values of 3.13, 4.76, and 6.39.

Which one of the following pH values falls outside the optimal buffering rangeof Citric acid?

A. pH 3.8  Incorrect B. pH 4.4  Incorrect C. pH 4.8  Incorrect D. pH 6.8  Incorrect E. pH 10.1  Correct MC

2585

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 2.3  Incorrect B. pH 4.1  Correct C. pH 6.3  Incorrect D. pH 7.4  Incorrect E. pH 11.1  Incorrect MC

7c89

Citric acid and its conjugate base, citrate, is an intermediate in the citric acid cycle.

Citric acid is triprotic with pKa values of 3.13, 4.76, and 6.39.

Which one of the following pH values falls outside the optimal buffering rangeof Citric acid?

A. pH 2.5  Incorrect B. pH 4.7  Incorrect C. pH 5.7  Incorrect D. pH 7.4  Incorrect E. pH 9.0  Correct MC

a527

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 1.7  Incorrect B. pH 2.3  Incorrect C. pH 6.7  Incorrect D. pH 7.5  Incorrect E. pH 9.4  Correct MC

2587

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 2.6  Incorrect B. pH 6.1  Incorrect C. pH 9.0  Correct D. pH 11.4  Incorrect E. pH 11.6  Incorrect MC

018c

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 0.6  Incorrect B. pH 1.3  Incorrect C. pH 8.6  Incorrect D. pH 10.2  Incorrect E. pH 10.6  Correct MC

c098

Phosphoric acid and its conjugate base, phosphate, is abbreviated Pi and is formed by cells from the hydrolysis of ATP into ADP.

Phosphoric acid is triprotic with pKa values of 2.16, 7.21, and 12.32.

Which one of the following pH values falls outside the optimal buffering rangeof Phosphoric acid?

A. pH 1.7  Incorrect B. pH 5.9  Correct C. pH 7.1  Incorrect D. pH 11.8  Incorrect E. pH 12.9  Incorrect MC

38f6

Citric acid and its conjugate base, citrate, is an intermediate in the citric acid cycle.

Citric acid is triprotic with pKa values of 3.13, 4.76, and 6.39.

Which one of the following pH values falls outside the optimal buffering rangeof Citric acid?

A. pH 2.5  Incorrect B. pH 5.4  Incorrect C. pH 5.6  Incorrect D. pH 7.3  Incorrect E. pH 9.4  Correct MC

3f1e

Phosphoric acid and its conjugate base, phosphate, is abbreviated Pi and is formed by cells from the hydrolysis of ATP into ADP.

Phosphoric acid is triprotic with pKa values of 2.16, 7.21, and 12.32.

Which one of the following pH values falls outside the optimal buffering rangeof Phosphoric acid?

A. pH 1.9  Incorrect B. pH 2.8  Incorrect C. pH 7.6  Incorrect D. pH 8.7  Correct E. pH 11.4  Incorrect MC

d5e0

Phosphoric acid and its conjugate base, phosphate, is abbreviated Pi and is formed by cells from the hydrolysis of ATP into ADP.

Phosphoric acid is triprotic with pKa values of 2.16, 7.21, and 12.32.

Which one of the following pH values falls outside the optimal buffering rangeof Phosphoric acid?

A. pH 3.1  Incorrect B. pH 6.2  Incorrect C. pH 8.0  Incorrect D. pH 10.4  Correct E. pH 13.2  Incorrect MC

551e

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 1.5  Incorrect B. pH 4.3  Correct C. pH 6.0  Incorrect D. pH 6.9  Incorrect E. pH 9.9  Incorrect MC

22b4

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 1.3  Incorrect B. pH 3.0  Incorrect C. pH 6.6  Incorrect D. pH 8.7  Incorrect E. pH 11.9  Correct MC

f9f3

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 1.3  Incorrect B. pH 3.4  Correct C. pH 6.3  Incorrect D. pH 11.1  Incorrect E. pH 11.8  Incorrect MC

f45f

Ethylenediaminetetraacetic acid and its conjugate base, EDTA, is commonly used in chelation therapy and as a chelating agent in biochemical experiments..

Ethylenediaminetetraacetic acid is tetraprotic with pKa values of 2.00, 2.67, 6.16, and 10.26.

Which one of the following pH values falls outside the optimal buffering rangeof Ethylenediaminetetraacetic acid?

A. pH 2.1  Incorrect B. pH 2.5  Incorrect C. pH 7.4  Correct D. pH 9.3  Incorrect E. pH 10.4  Incorrect MC

2be7

Citric acid and its conjugate base, citrate, is an intermediate in the citric acid cycle.

Citric acid is triprotic with pKa values of 3.13, 4.76, and 6.39.

Which one of the following pH values falls outside the optimal buffering rangeof Citric acid?

A. pH 4.2  Incorrect B. pH 5.5  Incorrect C. pH 5.7  Incorrect D. pH 7.0  Incorrect E. pH 8.2  Correct MC

bb4c

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 1.4  Incorrect B. pH 2.2  Incorrect C. pH 6.0  Incorrect D. pH 9.4  Correct E. pH 11.1  Incorrect MC

542d

Citric acid and its conjugate base, citrate, is an intermediate in the citric acid cycle.

Citric acid is triprotic with pKa values of 3.13, 4.76, and 6.39.

Which one of the following pH values falls outside the optimal buffering rangeof Citric acid?

A. pH 2.9  Incorrect B. pH 3.7  Incorrect C. pH 5.3  Incorrect D. pH 6.7  Incorrect E. pH 9.2  Correct MC

9a15

Citric acid and its conjugate base, citrate, is an intermediate in the citric acid cycle.

Citric acid is triprotic with pKa values of 3.13, 4.76, and 6.39.

Which one of the following pH values falls outside the optimal buffering rangeof Citric acid?

A. pH 3.0  Incorrect B. pH 3.9  Incorrect C. pH 4.2  Incorrect D. pH 6.6  Incorrect E. pH 10.3  Correct MC

b595

Phosphoric acid and its conjugate base, phosphate, is abbreviated Pi and is formed by cells from the hydrolysis of ATP into ADP.

Phosphoric acid is triprotic with pKa values of 2.16, 7.21, and 12.32.

Which one of the following pH values falls outside the optimal buffering rangeof Phosphoric acid?

A. pH 2.3  Incorrect B. pH 7.8  Incorrect C. pH 10.9  Correct D. pH 11.7  Incorrect E. pH 13.0  Incorrect MC

e1a0

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 0.2  Incorrect B. pH 1.1  Incorrect C. pH 5.7  Incorrect D. pH 8.9  Incorrect E. pH 10.8  Correct MC

1b34

Phosphoric acid and its conjugate base, phosphate, is abbreviated Pi and is formed by cells from the hydrolysis of ATP into ADP.

Phosphoric acid is triprotic with pKa values of 2.16, 7.21, and 12.32.

Which one of the following pH values falls outside the optimal buffering rangeof Phosphoric acid?

A. pH 1.7  Incorrect B. pH 7.5  Incorrect C. pH 10.6  Correct D. pH 11.4  Incorrect E. pH 12.9  Incorrect MC

4f6e

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH -0.1  Incorrect B. pH 2.0  Incorrect C. pH 2.7  Incorrect D. pH 3.7  Correct E. pH 7.7  Incorrect MC

0ee5

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 2.1  Incorrect B. pH 6.7  Incorrect C. pH 7.8  Incorrect D. pH 9.2  Correct E. pH 12.3  Incorrect MC

d66d

Phosphoric acid and its conjugate base, phosphate, is abbreviated Pi and is formed by cells from the hydrolysis of ATP into ADP.

Phosphoric acid is triprotic with pKa values of 2.16, 7.21, and 12.32.

Which one of the following pH values falls outside the optimal buffering rangeof Phosphoric acid?

A. pH 2.7  Incorrect B. pH 8.0  Incorrect C. pH 10.6  Correct D. pH 11.7  Incorrect E. pH 13.2  Incorrect MC

f7ef

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 1.0  Incorrect B. pH 1.3  Incorrect C. pH 4.0  Correct D. pH 5.9  Incorrect E. pH 7.4  Incorrect MC

ecc1

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 0.0  Incorrect B. pH 1.7  Incorrect C. pH 2.7  Incorrect D. pH 4.3  Correct E. pH 6.1  Incorrect MC

85c8

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 1.9  Incorrect B. pH 2.4  Incorrect C. pH 10.1  Correct D. pH 11.4  Incorrect E. pH 12.1  Incorrect MC

9d04

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 3.9  Correct B. pH 6.9  Incorrect C. pH 7.0  Incorrect D. pH 11.0  Incorrect E. pH 11.7  Incorrect MC

b208

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH -0.0  Incorrect B. pH 2.0  Incorrect C. pH 2.2  Incorrect D. pH 6.8  Incorrect E. pH 11.5  Correct MC

45c4

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 2.8  Incorrect B. pH 6.8  Incorrect C. pH 7.9  Incorrect D. pH 9.7  Correct E. pH 12.1  Incorrect MC

9f46

Ethylenediaminetetraacetic acid and its conjugate base, EDTA, is commonly used in chelation therapy and as a chelating agent in biochemical experiments..

Ethylenediaminetetraacetic acid is tetraprotic with pKa values of 2.00, 2.67, 6.16, and 10.26.

Which one of the following pH values falls outside the optimal buffering rangeof Ethylenediaminetetraacetic acid?

A. pH 1.9  Incorrect B. pH 2.1  Incorrect C. pH 3.4  Incorrect D. pH 8.7  Correct E. pH 9.7  Incorrect MC

3be7

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 1.3  Incorrect B. pH 2.7  Incorrect C. pH 4.5  Correct D. pH 6.6  Incorrect E. pH 7.6  Incorrect MC

4860

Pyrophosphoric acid and its conjugate base, pyrophosphate, is abbreviated PPi and is formed by cells from the hydrolysis of ATP into AMP.

Pyrophosphoric acid is tetraprotic with pKa values of 0.91, 2.10, 6.70, and 9.32.

Which one of the following pH values falls outside the optimal buffering rangeof Pyrophosphoric acid?

A. pH 1.2  Incorrect B. pH 2.7  Incorrect C. pH 6.3  Incorrect D. pH 7.1  Incorrect E. pH 11.9  Correct MC

a7d1

Ethylenediaminetetraacetic acid and its conjugate base, EDTA, is commonly used in chelation therapy and as a chelating agent in biochemical experiments..

Ethylenediaminetetraacetic acid is tetraprotic with pKa values of 2.00, 2.67, 6.16, and 10.26.

Which one of the following pH values falls outside the optimal buffering rangeof Ethylenediaminetetraacetic acid?

A. pH 1.9  Incorrect B. pH 3.3  Incorrect C. pH 4.5  Correct D. pH 5.6  Incorrect E. pH 10.3  Incorrect MC

483f

Ethylenediaminetetraacetic acid and its conjugate base, EDTA, is commonly used in chelation therapy and as a chelating agent in biochemical experiments..

Ethylenediaminetetraacetic acid is tetraprotic with pKa values of 2.00, 2.67, 6.16, and 10.26.

Which one of the following pH values falls outside the optimal buffering rangeof Ethylenediaminetetraacetic acid?

A. pH 1.0  Incorrect B. pH 4.6  Correct C. pH 6.1  Incorrect D. pH 6.4  Incorrect E. pH 9.3  Incorrect MC

3480

Citric acid and its conjugate base, citrate, is an intermediate in the citric acid cycle.

Citric acid is triprotic with pKa values of 3.13, 4.76, and 6.39.

Which one of the following pH values falls outside the optimal buffering rangeof Citric acid?

A. pH 3.1  Incorrect B. pH 3.8  Incorrect C. pH 5.2  Incorrect D. pH 7.3  Incorrect E. pH 9.1  Correct MC

0d6b

Phosphoric acid and its conjugate base, phosphate, is abbreviated Pi and is formed by cells from the hydrolysis of ATP into ADP.

Phosphoric acid is triprotic with pKa values of 2.16, 7.21, and 12.32.

Which one of the following pH values falls outside the optimal buffering rangeof Phosphoric acid?

A. pH 2.1  Incorrect B. pH 3.1  Incorrect C. pH 6.2  Incorrect D. pH 9.9  Correct E. pH 12.1  Incorrect MC

b25f

Citric acid and its conjugate base, citrate, is an intermediate in the citric acid cycle.

Citric acid is triprotic with pKa values of 3.13, 4.76, and 6.39.

Which one of the following pH values falls outside the optimal buffering rangeof Citric acid?

A. pH 2.8  Incorrect B. pH 3.5  Incorrect C. pH 5.1  Incorrect D. pH 7.0  Incorrect E. pH 9.4  Correct MC

cd6d

Phosphoric acid and its conjugate base, phosphate, is abbreviated Pi and is formed by cells from the hydrolysis of ATP into ADP.

Phosphoric acid is triprotic with pKa values of 2.16, 7.21, and 12.32.

Which one of the following pH values falls outside the optimal buffering rangeof Phosphoric acid?

A. pH 4.2  Correct B. pH 6.8  Incorrect C. pH 7.7  Incorrect D. pH 12.1  Incorrect E. pH 12.4  Incorrect MC

43d9

Arsenic acid and its conjugate base, arsenate, is extremely toxic, corrosive, and carcinogenic; it serves as a precursor to a variety of pesticides.

Arsenic acid is triprotic with pKa values of 2.19, 6.94, and 11.50.

Which one of the following pH values falls outside the optimal buffering rangeof Arsenic acid?

A. pH 1.7  Incorrect B. pH 4.3  Correct C. pH 6.7  Incorrect D. pH 7.4  Incorrect E. pH 11.9  Incorrect