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Calculate pH of a solution of a 0.30 M HCOOH (Ka is 1.8 X 10-4) and 0.50 M HCOOK?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter15: Additional Aqueous Equilibria

Section: Chapter Questions

Problem 31QRT

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Question

- Calculate pH of a solution of a 0.30 M HCOOH (Ka is 1.8 X 10^-4) and 0.50 M HCOOK?

- Calculate the pH of the 0.30 M NH3/ 0.36M NH4Cl buffer system. What is the pH after addition of 20.0 mL of 0.050 M NaOh to 1L of solution.

Calculate the buffer capacity.

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