pH and Buffers

Question 1

What is autoionization?

Answer 1

When molecules of the same substance react with each other.

Question 2

What is H₃O⁺

Answer 2

Hydronium ion - Gives rise to acids

Question 3

What is OH^-

Answer 3

Hydroxide ion

Question 4

What are the characteristics of bases?

Answer 4

Bitter tasting

Slippery feeling

Conduct Electricity

1. Have a pH above 7

Question 5

What are the characteristics of acids?

Answer 5

Taste sour

Conduct electricity

Have a pH below 7

Question 6

What is a neutralization reaction?

Answer 6

When a strong acid and a strong base react together to form a salt and water

Question 7

Strong acids/bases _______ ionize when dissolved in water (COMPLETELY/PARTIALLY)

Answer 7

completely

Question 8

weak acids/bases _______ionize in water (COMPLETELY/PARTIALLY)

Answer 8

partially

Question 9

Acids ________ H+ ions in a neutralization reaction (GIVE AWAY/TAKE)

Answer 9

Give away

Question 10

Bases _______ H+ ions in a neutralization reaction (GIVE AWAY/TAKE)

Answer 10

Take

Question 11

What are buffers?

Answer 11

Chemicals that resist pH change.

Question 12

What is homeostasis?

Answer 12

refers to the body’s attempt at maintaining a stable internal environment

Question 13

How is pH maintained in your body?

Answer 13

by the carbonic acid/bicarbonate buffer

Question 14

What happens when H⁺ enters the bloodstream?

Answer 14

HCO₃⁺ reacts with the H⁺ to neutralize it.

Question 15

What happens when a base enters the bloodstream?

Answer 15

the base reacts with the existing H⁺ in the body then H₂CO₃ can ionize to become H⁺ (replacing what was lost)

Question 16

Human blood pH must be maintained between ____ and ____

Answer 16

7.35 and 7.45