Question

Calculate the pH of a solution that has a hydronium ion concentration of 0.072 M

Answer 1

Given that :

hydronium ion concentration of 0.072 M

[H3o^+] = 0.072

We know that :

$\begin{gathered} P_H=-log_{10\text{ }}\lbrack H_3O^+\rbrack \\ \text{ = -log}_{10}\lbrack0.072\rbrack \\ \text{ = 1.1426} \\ \approx\text{ 1.14 } \end{gathered}$