Acid Base Review

Match each of the following acids to its conjugate base

• HPO₄^-2

• H₃PO₄

• H₂PO₄^-

• HPO₄^-2

• SO₄^-2

• HSO₄^-

• HSO₄^-

• H₂PO₄^-

• PO₄^-3

• H₂SO₄

Which of the following is the strongest acid?

• oven cleaner

  pH = 13.5

• lemon juice

  pH = 2.5

• soap

  pH = 10

• blood

  pH = 7.4

Why might citric acid be used in Sprite?

• To increase shelf life

• To add a sour flavor

• To reduce sugar content

• To enhance color

In the following reaction, NH₃ is a Bronsted-Lowry ______.

NH₃ + H₂O → NH₄⁺ + OH^-

• acid

• base

• conjugate acid

• conjugate base

What salt (name, not formula) is produced when you neutralize nitrous acid with cadmium hydroxide?

-log[H+] is used to find...

• the pH of an acid

• the pOH of an acid

• the concentration of [OH^-]

• the concentration of [H⁺]

Organize these acids and bases into the right categories

Groups:

(a) strong acid

,

(b) strong base

,

(c) weak acid

,

(d) weak base

• Fe(OH)₂

• KOH

• H₃PO₃

• HNO₃

• HNO₂

• NH₄OH

• HI

Which pair of compounds represents one Arrhenius acid and one Arrhenius base?

• HCl and NH₃

• HNO₃ and HS^-

• HBr and LiOH

• H₂CO₃ and F^-

What is the pOH of a 2.4 x 10^-8 M solution of HNO₃?

• 7.6

• 6.4

• 4.0 x 10^-7

• 8.0

What is the main purpose of an acid/base titration?

• To test if an acid and a base will react.

• To calculate the concentration of an unknown solution.

• To calculate the concentration of a known solution.

• To see when the color of the solution changes color.