Question

What is the hydrogen ion concentration in molarity if the hydroxide ion concentration is 7.609 10-13 ?

[H+][OH-] = 10-14
pH = -log[H+]
[H] = 10pH

Answer 1

Answer: The hydrogen ion concentration in molarity is 0.013

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pOH is calculated by taking negative logarithm of hydroxide ion concentration and pH is calculated by taking negative logarithm of hydrogen ion concentration

 

Putting in the values:

$pOH=-\log[7.609\times 10^{-13}]$

$pOH=12.1$

Now , $pH+pOH=14$

$pH=14-12.1=1.9$

$pH=-\log [H^+]$

$[H^+]=0.013M$

The hydrogen ion concentration in molarity is 0.013