(a) Calculate the pH of a buffer that is 0.12 M in lactic acidand 0.11 M in sodium lactate. (b) Calculate the pH of a bufferformed by mixing 85 mL of 0.13 M lactic acid with 95mL of 0.15 M sodium lactate.

(a) Calculate the pH of a buffer that is 0.12 M in lactic acidand 0.11 M in sodium lactate. (b) Calculate the pH of a bufferformed by mixing 85 mL of 0.13 M lactic acid with 95mL of 0.15 M sodium lactate.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter9: Aqueous Solutions And Chemical Equilibria

Section: Chapter Questions

Problem 9.29QAP

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

(a) Calculate the pH of a buffer that is 0.12 M in lactic acid
and 0.11 M in sodium lactate. (b) Calculate the pH of a buffer
formed by mixing 85 mL of 0.13 M lactic acid with 95
mL of 0.15 M sodium lactate.

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