Calculate the pOH of a 7.68x10-7 M HCl solution.

pOH = (round to 3 sig figs)

pOH = 7.89

Explanation:

As HCl is a strong acid, [H⁺] is equal to the original acid concentration. In other words:

Knowing [H⁺], we calculate the pH of the solution:

With the pH, we can calculate the pOH of the solution, using the following formula:

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