pH and H Plus

An acid

• is a substance that releases H+ ions when dissolved in water

• is a substance that does not release any ions when dissolved in water

• is a substance that releases OH- when dissolved in water

• releases an equal amount of OH- and H+ ions when dissolved in water

A solution has a pH of 7.0. What would happen to the pH if OH^- ions were added?

• pH would go up

• pH would go down

• pH would stay the same

• None of these

A  pH and a pOH will add up to:

• 0

• 7

• 14

• 1.0 x 10^-14

If the pH of a solution is 5.6 the pOH is

• 6.5

• 12.4

• 8.4

• 5.6

Limes have a [H₃O⁺] of 1.3 x 10^-2 mol/L.  Their pOH is

• 89

• 12.11

• 1.03

• 12.97

• 3

• 10

• 7

• 1

Which of the following solutions is the most acidic?

• pH 3

• pH 5

• pH 7

• pH 9

A solution has a pH of 8. What is its pOH?

• 6

• 8

• 14

• 7

• pH decreases

• pH increases

• pH remains the same

• pH becomes neutral