Solve the Problem $\left[\mathrm{H}^{\dagger}\right]$ Is About $2.9 \times 10^{-12}$ Moles Per Liter $\mathrm{pH}$

Multiple Choice

Solve the problem.
-The hydrogen ion concentration of a substance $\left[\mathrm{H}^{\dagger}\right]$ is about $2.9 \times 10^{-12}$ moles per liter. Find the $\mathrm{pH}$ . Round to the nearest tenth. Use the formula $\mathrm{pH}=-\log \left[\mathrm{H}^{+}\right]$ .

A) 11.8
B) 11.5
C) 12.5
D) -12.5