What is the hydronium h3o + concentration of a solution with a pH pf 3

1x10^-3M

Explanation:

Data obtained from the question include:

pH = 3

[H3O+] = ?

The concentration of the hydronium ion [H3O+] can be obtained by using the formula pH = - Log [H3O+] as illustrated below:

pH = - Log [H3O+]

3 = - Log [H3O+]

Divide through by - 1

- 3 = Log [H3O+]

Take the anti-log of - 3

[H3O+] = 1x10^-3M

Therefore, the concentration of the hydronium ion [H3O+] is 1x10^-3M