Question

The hydronium ion concentration of a solution is `1.3 xx 10^(-5)M`. Find out its pH value. Predict the nature of the solution.

Answer 1

Correct Answer - `4.88` Acidic
`[H_(3)O^(+)]=1.3 xx 10^(-5)M`
`pH =- log [H_(3)O^(+)] =- log (1.3 xx 10^(-5))`
`=(5 log 10 -log 1.3) =(5-0.114) =4.88`
Since the pH of the solution is less than 7 , it is acidic in nature .