# What is the pH of a solution with [H+]= 2.3 x 10^-6?

Jul 8, 2016

$p H = 5.64$

#### Explanation:

$p H = - {\log}_{10} \left[{H}_{3} {O}^{+}\right]$

$= - {\log}_{10} \left\{2.3 \times {10}^{-} 6\right\}$

$= - \left\{- 5.64\right\}$

$= 5.64$

If you are not confident with the logarithmic function please voice your concern. See here for the relationship between $p H$ and $p O H$ in aqueous solution.