If the H3O+ of a solution is 5.62x10-12M, what is the OH of the same solution? Assuming 25 degrees celcuis?

1 Answer
Dec 4, 2017

At #25°C#, #K_w = [OH^-][H^+] = 1.0* 10^-14#.

Hence,

#1.0*10^-14 = (5.62*10^-12M)[OH^-]#
#therefore [OH^-] approx 1.78*10^-3M#

In English, the concentrations of ions from water at equilibrium derive an equilibrium constant characteristic of the temperature.