pH and pOH Calculations Practice

Front

What is pH?

Back

pH is a measure of the hydrogen ion concentration in a solution, indicating its acidity or alkalinity on a scale of 0 to 14.

Front

What is pOH?

Back

pOH is a measure of the hydroxide ion concentration in a solution, indicating its basicity on a scale of 0 to 14.

Front

How are pH and pOH related?

Back

pH + pOH = 14 at 25°C.

Front

What is the formula to calculate [H3O+] from pH?

Back

[H3O+] = 10^(-pH).

Front

What is the formula to calculate pH from [H3O+]?

Back

pH = -log[H3O+].

Front

What is the formula to calculate [OH-] from pOH?

Back

[OH-] = 10^(-pOH).

Front

What is the formula to calculate pOH from [OH-]?

Back

pOH = -log[OH-].

Front

If the pH of a solution is 8, what is the [H3O+]?

Back

[H3O+] = 1.0 x 10^(-8) M.

Front

If the [H3O+] of a solution is 6.8 x 10^(-8) M, what is the pH?

Back

pH = 7.17.

Front

If the pH of a solution is 4.0, what is the pOH?

Back

pOH = 10.0.