Acid-Base pH & pOH calculations

For a solution at 25^oC, pH + pOH =

• 7

• 14

• 1.0 x 10^-14

• -log (1.0 x 10 ^-14)

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

• 4.0

• 10.0

• 1.0 x 10 ^-4

• cannot be determined from the information

If the [H₃O⁺] of a solution is 1 x 10^-3 M, the pH is

• 11

• -3

• 3

• 1

Calculate the pOH of a strong base with a concentration of 0.01 M.

• 14

• 2

• 0

• -2

Calculate the pOH of a salt solution formed by mixing a weak acid and a weak base.

• pOH = -log[acid]

• pOH = -log[H+]

• pOH = -log[OH-]

• pOH = -log[salt]

Ammonia has a pOH of 2. Ammonia is __________.

• an acid

• a base

• an element

• a metal