1. Write down the expression for Ka for each of the following acids:
(a) CH3COOH
CH3COOH + H2O CH3COO- + H3O+
(b) H2CO3
(c) HCO3-
H2CO3 + H2O HCO3- + H3O+
HCO3- + H2O CO32- + H3O+