What is the hydrogen ion concentration [H+] in a 3.76 x 10^-2 M solution of nitric acid (HNO3)

Nitric acid (HNO₃) is a strong acid. Hence, it completely dissociates into ions as H⁺ and NO₃⁻ in water.

The balanced equation is;

HNO₃ (aq) →H⁺ (aq) + NO₃⁻ (aq)

The stoichiometric ration between HNO₃ (aq) and H⁺ (aq) is 1 : 1

Hence, the [H⁺] = 3.76 x 10 ⁻² M