Which of these correctly defines the poh of a solution

Asked by maham237 @ 01/07/2021 in Chemistry viewed by 302 People

the log of the hydronium ion concentration the negative log of the hydronium ion concentration the log of the hydroxide ion concentration the negative log of the hydroxide ion concentration

Answered by maham237 @ 01/07/2021

Answer : The correct option is, the negative log of the hydroxide ion concentration.

Explanation :

pOH : It is defined as the negative logarithm of hydroxide ion concentration. It is a measure of the alkalinity of the solution.

Formula used :

$pOH=-log[OH^-]$

$[OH^-]$ is the concentration of $OH^-$ ions.

When pOH is less than 7, the solution is alkaline.

When pOH is more than 7, the solution is acidic.

When pOH is equal to 7, the solution is neutral.

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