Question

What is the poH of a 6.5 x 10-12 M OH solution? pOH = [?]

Answer 1

Answer:

$pOH=11.2$

Explanation:

Hello,

In this case, by knowing that the pOH is defined in terms of the concentration of OH⁻ as shown below:

$pOH=-log([OH^-])$

We directly compute with the given concentration:

$pOH=-log(6.5x10^{-12})\\\\pOH=11.2$

Moreover, fur such pOH, the pH will be:

$pH=14-11.2=2.8$

Which means that such solution is an acid solution.

Best regards.