Question

[OH﹘] = 6.5 x 10-5Mfind the pH and pOH

Answer 1

Answer:

pH = 9.81

pOH = 4.19

Explanations:

The formula for calculating the pOH of a solution is given as:

$pOH=-log[OH^-]$

Given the following parameters

$[OH^-]=6.5\times10^{-5}M$

Substitute

$\begin{gathered} pOH=-log(6.5\times10^{-5}) \\ pOH=-(-4.19) \\ pOH=4.19 \end{gathered}$

Determine the pH of the solution

$\begin{gathered} pH+pOH=14 \\ pH=14-pOH \\ pH=14-4.19 \\ pH=9.81 \end{gathered}$

Therefore the pH and pOH are 9.81 and 4.19 respectively