Question

Calculate the pH if [H+] = 2.79 x 10^-11 M

Answer 1

10.6.

Step-by-step explanation:

What is given?

[H⁺] = 2.79 x 10⁻¹¹ M.

Step-by-step solution:

Let's see the formula of pH:

`pH=-\log_(10)[H^+]=-\log_(10)[H_3O^+].`

Where [H⁺] is the proton concentration in M. So we have to replace the given data in the formula:

`pH=-\log_(10){}\lbrack2.79\cdot10^(-11)]=10.55\approx10.6.`

The pH of a [H⁺] = 2.79 x 10⁻¹¹ M solution would be 10.6.