Answered: A) A buffer solution contains 0.413 M…

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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A) A buffer solution contains 0.413 M KHSO₃ and 0.242 M Na₂SO₃. Determine the pH change when 0.121 mol KOH is added to 1.00 L of the buffer.

pH after addition − pH before addition = pH change

B )A 24.0 mL sample of 0.256 M methylamine, CH₃NH₂, is titrated with 0.335 M hydrobromic acid.

After adding 7.50 mL of hydrobromic acid, the pH is .

C) A 29.4 mL sample of 0.202 M ethylamine, C₂H₅NH₂, is titrated with 0.295 M nitric acid.

At the equivalence point, the pH is .

D) A 23.2 mL sample of 0.365 M triethylamine, (C₂H₅)₃N, is titrated with 0.214 M hydroiodic acid.

After adding 57.4 mL of hydroiodic acid, the pH is

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