Question

if pH of H3O+ is 4.7. what is the concenration of H3O+?

Answer 1

[H+] = 10 ^-pH = 10 ^-4.7 = 2.00 x 10 ^05

[OH]- = 10 ^-14 / [H+} = 10^-14 / 2.00 x 10 ^05

[OH-] = 5 x 10 ^-10 moles / liter