Answer all parts What will be the pH change when 20.0 mL of 0.100 M NaOH is added to 80.0 mL of a buffer solution consisting of0.167 M NH3 and 0.182 M NH4CI? (Assume that there is no change in total volume when the two solutions mix.)pka= 9.25 Instructions for making up a buffer to mix 70 mL (0.070 L) of 0.100 M NH3 with 30 mL (0.030 L) of 0.100 MNH4CI. What is the pH of this buffer?Kb= 1.8 x 10-5

Henderson–Hasselbalch equationpH = pKa + log Conjugate baseWeak acidpOH = pKb + log Conjugate…

Answered: Instructions for making up a buffer to…

Instructions for making up a buffer to mix 70 mL (0.070 L) of 0.100 M NH3 with 30 mL (0.030 L) of 0.100 M NH4CI. What is the pH of this buffer? Kb = 1.8 x 10-5

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

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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.

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Answer all parts

What will be the pH change when 20.0 mL of 0.100 M NaOH is added to 80.0 mL of a buffer solution consisting of
0.167 M NH3 and 0.182 M NH4CI? (Assume that there is no change in total volume when the two solutions mix.)
pka
= 9.25

Instructions for making up a buffer to mix 70 mL (0.070 L) of 0.100 M NH3 with 30 mL (0.030 L) of 0.100 M
NH4CI. What is the pH of this buffer?
Kb
= 1.8 x 10-5

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