Solve the Problem $\mathrm{pH}=-\log \left[\mathrm{H}_{3} \mathrm{O}^{+}\right]$ , as Needed $\mathrm{pH}$ If $\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=3.6 \times 10^{-14}$

Multiple Choice

Solve the problem. Round your answer to the nearest tenth, when appropriate. Use the formula $\mathrm{pH}=-\log \left[\mathrm{H}_{3} \mathrm{O}^{+}\right]$ , as needed.
-Find the $\mathrm{pH}$ if $\left[\mathrm{H}_{3} \mathrm{O}^{+}\right]=3.6 \times 10^{-14}$ .

A) 13.7
B) -14.6
C) 14.6
D) 13.4