Answered: Consider a damping system consisting of…

Consider a damping system consisting of 0.250 M HCN (Ka = 4.9 x 10-10) and 0.170 M KCN. What is the pH of such a system? a. 9.47 b. 10.45 c. 9.14 d. 5.32 e. 3.71

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter23: Potentiometry

Section: Chapter Questions

Problem 23.11QAP

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

Consider a damping system consisting of 0.250 M HCN (Ka = 4.9 x 10-10) and 0.170 M KCN. What is the pH of such a system?

a. 9.47

b. 10.45

c. 9.14

d. 5.32

e. 3.71

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