pH and pOH Calculations

What does pH measure?

• the amount of hydrogen (H⁺) ions

• the amount of hydroxide (OH^-) ions

• amount of water

• all of the above

A pH of 3 is how many times more acidic than a pH of 5?

• 2

• 20

• 10

• 100

Neutral solutions have a pH of

• pH of 2

• pH of 0

• pH of 7

• A neutral solution does not have a pH

A base is a substance

• That releases OH- ions when dissolved in water

• That releases H+ ions when dissolved in water

• Does not release any ions when dissolved in water

• None of the above

The pH scale is a range from:

• 1-7
• 0-14
• 1-14
• 1-20

A(n) ______ is a substance with a pH less than 7

• Acid
• Alkaline
• Base
• Buffer

A(n) _______ is a substance with a pH greater than 7.

• Base
• Acid
• Buffer
• Water

Which solution releases H+ in solution?

• Base
• Acid
• Buffer
• Water

According to the pH range which substance is more acidic than lemon juice

• Hydrochloric acid
• cabbage
• milk

An indicator will ______________ when it is in contact with an acid or base

• Bubble
• Form a new substance
• Change color
• Stay the same color

Tags

NGSS.MS-PS1-2