Respuesta :

Stephen46

Answer:

4

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(1.0 \times {10}^{ -4 } ) [/tex]

We have the final answer as

4

Hope this helps you