Question

What does a solution with a hydronium ion concentration of`10^-11` M have a pH of?

Answer 1

`pH=11`

Explanation:

`pH=-log_10[H_3O^+]`

`[H_3O^+]=10^-11*mol*L^-1`

`-log_10[H_3O^+]=-log_10(10^-11)=-(-11)=11`.

Clearly, this is an aqueous solution. Is this an acidic or basic solution?