Question

The $pH$ of a solution is $8$. What will be its hydrogen ion concentration.

• A. ${10}^{-8}$
• B. ${10}^{-9}$
• C. $2^{-8}$
• D. None

Answer 1

The correct option is A ${10}^{-8}$

We know that $pH$$=$$-log\left[H^{+}\right]$
$pH$$=$$8$
Thus, $8$$=$$-log\left[H^{+}\right]$
Hence $\left[H^{+}\right]$$=$${10}^{-8}$
Thus, concentration of $H^{+}$ is ${10}^{-8}M$