Step 1

HClO_{4} → H^{+ }+ ClO^{-}

$\frac{\mathbf{3}\mathbf{.}\mathbf{4}\mathbf{\times}{\mathbf{10}}^{\mathbf{-}\mathbf{8}}\mathbf{}\overline{)\mathbf{mol}\mathbf{}\mathbf{HClO}}}{\mathbf{1}\mathbf{}\mathbf{L}}\mathbf{\times}\frac{\mathbf{1}\mathbf{}\mathbf{mol}\mathbf{}{\mathbf{H}}^{\mathbf{+}}}{\mathbf{1}\mathbf{}\overline{)\mathbf{mol}\mathbf{}\mathbf{HClO}}}$** = 3.4x10 ^{-8} mol H^{+}**

What is the pH of a 3.4 x 10^{-8} M HClO_{4} solution at room temperature?

A. 7.1

B. 7.0

C. 5.3

D. 6.9

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the pH and pOH concept. You can view video lessons to learn pH and pOH. Or if you need more pH and pOH practice, you can also practice pH and pOH practice problems.