Question

a) Calculate the pH of a solution 0.145M with respect to CH3CH2COOH and 0.115M with respect to K+CH3CH2COO-. Ka=1.3*10-5; pKa=4.89

b) Calculate the pH of the same solution after adding 0.015M KOH

c) Calculate the pH of the same solutions as in part (a) but after addition of 0.015M HBr

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