Question

What is the pH for the following concentration: [H3O+] = 3.24 x 10-3 M

Answer 1

To determine the pH we can apply the equation for the pH of a solution:

pH = -log [H3O+]

Where [H3O+] is the molar concentration of the acid, so now we can apply the equation and do the respective operation:

`\begin{gathered} pH=\text{ -log }\mleft[H_3O+\mright] \\ pH=\text{ -log }\lbrack3.24*10^(-3)\rbrack \\ pH\text{ = - (-2.49)} \\ pH\text{ = 2.49} \end{gathered}`