Question

Calculate the ph of a solution with a [H 3 0+]=7.2×10-8 M

Answer 1

pH = 7.14.

Step-by-step explanation:

Hello there!

In this case, since the pH of a solution is computed via the negative logarithm of the concentration of hydrogen ions:

`pH=-log([H_3O^+])`

Therefore, we plug in the given concentration to obtain:

`pH=-log(7.2x10^(-8))\\\\pH=7.14`

Which is a nearly-neutral solution.