Question

What is the ph of a solution of H2SO4 that has[H3O]=5.45*10^-5M

Answer 1

4.26= -log(5.45x10^-5)

Answer 2

pH = 4.26

Step-by-step explanation:

Given:

[H3O+] = 5.45*10^-5 M

Formula:

pH = -log[H3O+]

Here, H2SO4 is a strong acid and will completely dissociate into ions

`H_(2)SO_(4) \rightleftharpoons H^(+) + SO_(4)^(2-)`

H+ is the same as H3O+

Hence,

`pH = -log[5.45*10^(-5)]= 4.26`