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

Answer:

pH = 4.26

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,

$pH = -log[5.45*10^{-5}]= 4.26$