AP Chemistry Acids and Bases

As the number of hydrogen ions (H⁺) decreases, the pH ___________.

• increases

• decreases

• stays the same

Which of the following is the strongest acid?

• 1

• 5

• 3

• 8

Tags

NGSS.HS-PS1-1

Which of the following is the strongest base?

• 4

• 14

• 7

• 15

What is the pH of blood?

• 7.0

• 7.4

• 7.8

• 8.0

Tags

NGSS.HS-LS1-3

A pH of 8 is how many times more acidic than a pH of 11?

• 3

• 30

• 100

• 1000

A substance with a pH of 8 is...

• a weak base

• a weak acid

• a strong base

• a strong acid

A substance with a pH of 7 is which of the following?

• acid

• base

• neutral

A substance with a pH of 11 is which of the following?

• acid

• base

• neutral

A substance is found to have the following characteristics:

Very bitter taste

Feels slippery to the touch

Produces OH- ions when dissolved in water

In what category would the substance be classified?

• acid

• base

• enzyme

• fatty acid

Which of the following is a base?

• baking soda in water

• orange juice

• vinegar

• lemonade