Calculate the pH of a buffer that is 0.040 M HA and 0.020 M NaA. HA is a weak acid and its Ka is 5.0 x 10 ^-4

Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter17: Principles Of Chemical Reactivity: Other Aspects Of Aqueous Equilibria
Section17.2: Controlling Ph: Buffer Solutions
Problem 17.5CYU: Calculate the pH of 0.500 L of a buffer solution composed of 0.50 M formic acid (HCO2H) and 0.70 M...
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Calculate the pH of a buffer that is 0.040 M HA and 0.020 M NaA. HA is a weak acid and its Ka is 5.0 x 10 ^-4

a. 3.00

b. 5.00

c. 3.30

d.3.60

f. 3.16

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