Answer to Question #168232 in Inorganic Chemistry for Arya Prakash

Question #168232

Calculate the pH of 0.100moldm^-3 propanoic acid


1
Expert's answer
2021-03-03T02:00:34-0500

First we need to write the Ka expression

CH3CH2COOH(aq) CH3CH2COO- (aq) + H3O+(aq)



Ka



Then Ka


Now, Ka for Propanoic acid is 1.34x10-5 and concentration is 0.1M


Therefore, 1.34x10-5






pH = 2.9



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