maxonsmith3937 maxonsmith3937 17-05-2023 Chemistry contestada What is the pH of a 1.8 M solution of the weak acid HNO2, given that the Ka of the acid is 7.2×10−4? The equilibrium expression is: HNO2(aq)+H2O(l)⇋H3O+(aq)+NO−2(aq) Round your answer to two decimal places.