A solution is prepared at 25°C that is initially 0.50M in propanoic acid HC2H5CO2 , a weak acid with =Ka×1.310−5 , and 1.8M in potassium propanoate KC2H5CO2 . Calculate the pH of the solution. Round your answer to 2 decimal places.

Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter16: Acids And Bases
Section: Chapter Questions
Problem 85AP: . A(n) _________ solution contains a conjugate acid-base pair and through this is able to resist...
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A solution is prepared at

25°C

that is initially

0.50M

in propanoic acid

HC2H5CO2

, a weak acid with

=Ka×1.310−5

, and

1.8M

in potassium propanoate

KC2H5CO2

. Calculate the pH of the solution. Round your answer to

2

decimal places. 

 

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