pH & pOH

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

What is the relationship between pH and pOH?

Back

pH + pOH = 14 at 25°C.

Front

How do you calculate pH from [H+]?

Back

pH = -log[H+].

Front

How do you calculate pOH from [OH-]?

Back

pOH = -log[OH-].

Front

If [H+] = 1 x 10^-3 mol/L, what is the pH?

Back

pH = 3.

Front

If pH = 4, what is [H+]?

Back

[H+] = 1.0 x 10^-4 M.

Front

If pOH = 6, what is [OH-]?

Back

[OH-] = 1.0 x 10^-6 M.

Front

What is the [H+] of a neutral solution at 25°C?

Back

[H+] = 1.0 x 10^-7 M.

Front

What is the [OH-] of a neutral solution at 25°C?

Back

[OH-] = 1.0 x 10^-7 M.