Acids & Bases - The Second

Estimate the pH of a weak acid:

• 1

• 4

• 7

• 9

Estimate the pH of water:

• 1

• 4

• 7

• 12

Estimate the pH of vinegar:

• 3

• 7

• 9

• 14

Estimate the pH of sodium hydroxide solution:

• 2

• 6

• 10

• 13

Describe a solution with a pH of 7:

• Strongly acidic

• Neutral

• Slightly basic

• Strongly basic

Describe the solution with a pH of 14:

• Strongly acidic

• Weakly acidic

• Weakly basic

• Strongly basic

How can we test if a solution is basic?

• It turns water blue

• It turns blue litmus paper purple

• It turns red litmus paper blue

• It turns blue litmus paper red

How can we tell if a solution is acidic?

• It turns water blue.

• It turns red litmus paper green.

• It turns red litmus paper blue.

• It turns blue litmus paper red.

Which one is a concentrated acid?

• 5 mol/L hydrochloric acid

• 0.5 mol/L hydrochloric acid

• 0.5 mol/L sodium hydroxide

• 5 mol/L sodium hydroxide

Which one is a dilute base?

• 5 mol/L nitric acid

• 0.5 mol/L nitric acid

• 0.5 mol/L potassium hydroxide

• 5 mol/L potassium hydroxide