Answer:
Concentration of hydronium ion, H3O+ is 1x10^-2 M
Step-by-step explanation:
The following data were obtained from the question:
Concentration of Hydroxide ion, [OH-] = 1.0x10^-12 M
Concentration of hydronium ion, [H3O+] =?
Next, we shall determine the pOH of the solution. This is illustrated below below:
pOH = - Log [OH-]
pOH = - Log 1.0x10^-12
pOH = 12
Next, we shall determine the pH of the solution.
pH + pOH = 14
pOH = 12
pH + 12 = 14
Collect like terms
pH = 14 - 12
pH = 2
Finally, we shall determine the Concentration of hydronium ion, [H3O+] as follow:
pH = - log [H3O+]
pH = 2
2 = - log [H3O+]
- 2 = log [H3O+]
[H3O+] = Antilog (-2)
[H3O+] = 0.01M = 1x10^-2 M