Respuesta :

Answer:

The answer is 7.42

Explanation:

The pH of a solution can be found by using the formula

[tex]pH = - log [ { H_3O}^{+}][/tex]

From the question we have

[tex]pH = - log(3.8 \times {10}^{ - 8} ) \\ = 7.420216...[/tex]

We have the final answer as

7.42

Hope this helps you