The hydrogen ion concentration of a solution is $1.0\times {10}^{-8}\mathrm{M}$.  What is the pH of the solution?

A pH is a number that represents whether a solution is acidic or not.

It is represented as-

$$\begin{gathered} \mathrm{pH} = -\log \left[{\mathrm{H}}^{+}\right] \\ \mathrm{or} \\ \mathrm{pH} = - \log \left[{\mathrm{H}}_3{\mathrm{O}}^{+}\right] \end{gathered}$$

Now, $\left[{\mathrm{H}}^{+}\right]$= $1.0\times {10}^{-8}\mathrm{M}$

Thus, the pH of the given solution is calculated as-

$\mathrm{pH} = -\log (1.0\times {10}^{-8})$

$\mathrm{pH} = 8$

Hence, the pH of the solution is 8.