pH Calculations Practice

If you increase the pH by one, the concentration of the solution changes by...

• 1

• 10

• 100

• does not change

What is the pH of a neutral substance?

• 1

• 7

• 0

• 14

Does a base with a pH of 9 have a higher or lower molarity than a base with a pH of 10?

• Higher

• Lower

Which has a higher molarity: an acid with a pH of 2 or an acid with a pH of 3?

• 2

• 3

True or false: A base with a pH of 12 has a lower concentration than a base with a pH of 10.

• True

• False

Calculate the pH of 0.095 M HCl and identify it as either an acid or base.

• pH = 1.0, acid

• pH = 1.0, base

• pH = 13, acid

• pH = 13, base

Calculate the pH of 0.081 M HNO₃ and identify it as either an acid or a base.

• pH = 1.1, acid

• pH = 1.1, base

• pH = 3.4, acid

• pH = 3.4, base

Calculate the pH of 0.00078 M H₃PO₄ and identify it as either an acid or a base.

• pH = 4.5, base

• pH = 4.5, acid

• pH = 3.1, base

• pH = 3.1, acid

Calculate the pH of 0.0016 M H₂SO₄ and determine if it is strong or weak, and an acid or a base.

• pH = 2.8, strong base

• pH = 2.8, strong acid

• pH = 5.6, weak acid

• pH = 5.6, weak base

Calculate the pH of .0000055 M KOH and determine whether it is strong or weak, and an acid or a base.

• pH = 5.3, weak base

• pH = 5.3, weak acid

• pH = 8.7, strong base

• pH = 8.7, strong acid