Question

What is the hydronium ion concentration in a solution of HCl that has a pH of 4.65? Round to the nearest hundredth.
× 10n M
n =
What is the hydroxide ion concentration in a solution of NH3 with a pOH of 4.65? Round to the nearest hundredth.
× 10n M
n =

Answer 1

Answer:

The hydronium ion concentration can be found from the pH by the reverse of the mathematical operation employed to find the pH. [H3O+] = 10-pH or [H3O+] = antilog (- pH) Example: What is the hydronium ion concentration in a solution that has a pH of 8.34? On a calculator, calculate 10-8.34, or "inverse" log ( - 8.34).

Explanation: