C2.3 Rates of Reaction

Question 1

What is the equation for the rate of a reaction?

Answer 1

1/time taken

Question 2

List the 3 methods of monitoring a rate of a reaction

Answer 2

Measure amount of product gained over time

Measure loss of a reactant over time

Measure time took for precipitate to form

Question 3

What would be an appropriate method to use to measure the rate of reaction in metal with a dilute acid?

Answer 3

Gas collection / mass loss

Question 4

What would be an appropriate method to use to measure the rate of reaction in calcium carbonate with a dilute acid?

Answer 4

Gas collection / mass loss method

Question 5

What would be an appropriate method to use to measure the rate of reaction in the catalytic decomposition of hydrogen peroxide?

Answer 5

Gas collection / mass loss

Question 6

What would be an appropriate method to use to measure the rate of reaction in sodium thiosulfate with an acid?

Answer 6

Formation of a precipitate

Question 7

What is a catalyst?

Answer 7

A substance which increases the rate of reaction without being used up.

Question 8

What is commonly used as a catalyst?

Answer 8

Transition metals and their compounds

Question 9

What is the catalyst used in the decomposition of hydrogen peroxide?

Answer 9

Manganese (IV) Oxide