Acids and Bases (no calcs)

Question 1

Define a Brønsted-Lowry acid

Answer 1

Proton donor

Question 2

Define a Brønsted-Lowry base

Answer 2

Proton acceptor

Question 3

What physical factors affect the value of Kw?

Answer 3

Temperature
If temperature increases, the equilibrium shifts to the right
This increases Kw and therefore decreases the pH of pure water

Question 4

Why is pure water still neutral even if the pH isn’t 7?

Answer 4

Concentration of H+ and OH- is equal

Question 5

Define strong acid

Answer 5

One which fully dissociates in water

Question 6

What is a weak acid?

Answer 6

Do not fully dissociate in water
Only partially dissociate into their ions

Question 7

What are some examples of strong acids

Answer 7

Hydrochloric acid
Nitric acid
Phosphoric acid

Question 8

Examples of strong bases

Answer 8

Sodium hydroxide
Calcium carbonate
Sodium carbonate

Question 9

Give some examples of weak acids

Answer 9

Ethanoic acid , any organic acid

Question 10

Example of a weak base

Answer 10

Ammonia

Question 11

What is a conjugate pair?

Answer 11

Species that differ in formula by H+