Question

A Lemon juice having pH 4.2 what will be the pOH​

Answer 1

Given:

$pH$ of lemon juice = $4.2$

To find:

$pOH$ of the lemon juice

Formula used:

$pH\;+\;pOH\;=\;14$

$pH$ is the logarithmic measure of the concentration of hydronium ions in a solution

$pOH$ is the logarithmic measure of the concentration of hydroxide ions in a solution

Step-by-step explanation:

$pH\;+pOH\;=\;14\\ \\ 4.2\;+\;pOH\;=\;14\\\\ pOH\;=\;14\;-\;4.2\\\\ pOH\;=\;9.8$

Answer:

Therefore, the $pOH$ of lemon juice is $9.8$