Calculate the pH at 25 °C of a 0.71M solution of potassium cyanide (KCN). Note that hydrocyanic acid (HCN) is a weak acid with a pK, of 9.21. Round your answer to 1 decimal place. pH = 0 X

Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter15: Solutions Of Acids And Bases
Section: Chapter Questions
Problem 15.31QE
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Calculate the pH at 25 °C of a 0.71M solution of potassium cyanide (KCN). Note that hydrocyanic acid (HCN) is a weak acid with a p K of 9.21.
a
Round your answer to 1 decimal place.
pH =
X
S
Transcribed Image Text:Calculate the pH at 25 °C of a 0.71M solution of potassium cyanide (KCN). Note that hydrocyanic acid (HCN) is a weak acid with a p K of 9.21. a Round your answer to 1 decimal place. pH = X S
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