More practice - adding acid to a buffer 1 Calculate the pH change that takes place when 100.0 mL of 0.0500 M HCl are added to 400.0 mL of a buffer solution that is 0.200 M in NH, and 0.300 M in NH C1. The K, of NH, = 1.8 x 10. Answer: pH of buffer= 9.08, pH after addition of NaOH 9.03,Change = 0.05 =

More practice - adding acid to a buffer 1 Calculate the pH change that takes place when 100.0 mL of 0.0500 M HCl are added to 400.0 mL of a buffer solution that is 0.200 M in NH, and 0.300 M in NH C1. The K, of NH, = 1.8 x 10. Answer: pH of buffer= 9.08, pH after addition of NaOH 9.03,Change = 0.05 =

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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Question

More practice - adding acid to a buffer 1
Calculate the pH change that takes place when 100.0 mL of 0.0500 M HCl are added
to 400.0 mL of a buffer solution that is 0.200 M in NH3 and 0.300 M in NH CI.
The K, of NH, = 1.8 x 10.
Answer: pH of buffer= 9.08, pH after addition of NaOH = 9.03, Change = 0.05

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Step 1: Determine the pH of the buffer solution initial and after add HCl:

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Step 2: Calculation for initial pH of the buffer solution:

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Step 3: Calculation for pH of the buffer after add HCl:

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Step 4: Calculation for pH change:

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