16.2 Hydrogen Ions and pH: The pH Scale and pH calculations

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

This substance releases OH- into solution

• Acid
• Base
• Neutral

Which is most acidic?

• Baking Soda
• Lemon Juice
• Black Coffee
• Milk

Tastes Sour

• Acids
• Bases
• Salts
• All

What is the [H⁺] of a solution whose [OH^-] is 9.31 x 10^-2 M?

K_w = [H+][OH-] or 1.0 x 10^-14

• 1.07 x 10^-13 M

• 10.44 M

• 9.31 x 10¹² M

• 9.31 x 10^-16 M

Bleach is a strong base, what is the pH level of bleach?

• 13
• 14
• 1
• 2

What does pH measure?

• the amount of hydrogen (H⁺) ions

• the amount of hydroxide (OH^-) ions

• amount of water

• all of the above