Question

What is the hydronium (H3O+) concentration of a solution with a pH of 3.60?

Answer 1

Answer : The hydronium ion concentration of a solution is
`2.51* 10^(-4)M`.

Solution : Given,

pH = 3.60

pH : It is defined as the negative logarithm of hydronium ion concentration.

Formula used :

`pH=-log[H_3O^+]`

Now put all the values in this formula, we get

`3.60=-log[H_3O^+]\\`

`[H_3O^+]=antilog(-3.60)`

`[H_3O^+]=0.000251=2.50* 10^(-4)`

Therefore, the hydronium ion concentration of a solution is
`2.51* 10^(-4)M`.