Acid Base Review

The table shows the pH of several solutions. Which solution is the most acidic?

• vinegar

• milk

• water

• bleach

Zn(OH)₂ is an example of a...

• acid

• base

• salt

• water

H₃PO₄ is an example of a ...

• acid

• base

• salt

• non-electrolyte

At what pH would all three indicators appear as yellow?

• 1.7

• 2.7

• 4.7

• 8.7

Phenolphthalein is pink in an aqueous solution having a pH of

• 2

• 7

• 5

• 12

Which of the following correctly identifies an Acid-Base Pair?

• HH₄⁺ , OH^-

• H₂O , OH^-

• CaCO_{3 ,}CaCl₂

• HNO₃ , H₂SO₄

The conjugate acid of HCO₃^- is ___ and the conjugate base of HCO₃^- is ___.

• H₂CO₃; CO₃^-2
• CO₃^-2; CO₃^-2
• H₂CO₃; H₂O
• H₂O; H₂CO₃

Which of the following shows the correct conjugate acid base pair?

• HCI (acid) / H₃O⁺ (conjugate base)
• HCI (acid) / CI^- (conjugate base)
• HCI (base) / CI^- (conjugate acid)
• HCI (base) / H₃O⁺ (conjugate acid)

A bronsted lowry acid

• produces hydroxide ions in a solution

• is a proton donor

• produces hydrogen ions in a solution

• is a proton acceptor

Water can act as both an acid and a base according to the bronsted lowry model. This means water is

• neutral

• conjugate

• ionic

• amphoteric