A buffer solution containing only 0.050 mol of CH3NH2 and 0.060 mol of CH3NH3ClI has a total volume of 500 mL. What is the pH after the addition of 0.020 mol of solid NaOH to this buffer? Kb (CH3NH2) = 4.2 × 10-4 10.62 10.87 10.19

A buffer solution containing only 0.050 mol of CH3NH2 and 0.060 mol of CH3NH3ClI has a total volume of 500 mL. What is the pH after the addition of 0.020 mol of solid NaOH to this buffer? Kb (CH3NH2) = 4.2 × 10-4 10.62 10.87 10.19

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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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

A buffer solution containing only 0.050 mol of CH3NH2 and 0.060 mol of CH3NH3CI
has a total volume of 500 mL. What is the pH after the addition of 0.020 mol of solid
NAOH to this buffer?
Kb (CH3NH2) = 4.2 × 10-4
%3D
10.62
10.87
10.19
O 12.60
O 11.05

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