Acids

Question 1

What is it called when acid molecules are added to water and split apart?

Answer 1

They ionise or dissociate

They both mean the same thing

Question 2

What happens to strong acids when added to water and split apart?

Answer 2

Strong acids dissociate completely

Question 3

What happens to weak acids when added to water and split apart?

Answer 3

Only partially ionise/dissociate

Question 4

What are some strong acids?

Answer 4

• Sulphuric acid
• Hydrochloric acid
• Nitric acid

Question 5

The dissociation of weak acids is a reversible reaction, which means that the products can react together to reform the acids.

True of False?

Answer 5

True

Question 6

For a weak acid, does the position of equilibrium lie to the left or the right?

Answer 6

Left

Question 7

What are some weak acids?

Answer 7

• Ethanoic acid
• Carbonic acid
• Citric acid

Question 8

Describe Carbonic Acid (weak)

Answer 8

• It does not fully ionise to release hydrogen ions

- It will form a solution with a pH of less than 7

Question 9

What describes the strength of acid?

Answer 9

The proportion of acid molecules which dissociate into hydrogen ions