Chemistry Rate Of Reaction

Question 1

What is the aim

Answer 1

To investigate the relationship between concentration and rate of reaction

Question 2

What factors does the rate of reaction depend on

Answer 2

Temperature, reactant concentrations, surface area of solid reactants and presence or absence of a catalyst

Question 3

What will you do in this investigation

Answer 3

How the concentration of hydrochloric acid affects the rate of reaction when added to the magnesium.

Question 4

How will you measure the rate of reaction?

Answer 4

By observing the rate at which hydrogen gas is produced

Question 5

What is the purpose of the bung and delivery tube in method 1

Answer 5

To prevent the escape of hydrogen gas

Question 6

What is the point of the black paper cross in method 2

Answer 6

To provide a reference point for visibility

Question 7

Dependant variable meaning

Answer 7

The factor that is being measured or tested and is expected to change as a result of manipulation of the independent variable

Question 8

What is the dependent variable in the investigation on the relationship between concentration and rate of reaction

Answer 8

Volume of hydrogen gas produced

Question 9

What is the independent variable in the investiagtion

Answer 9

Concentration of the hydrochloric acid

Question 10

What is the control variable in the investiagtion

Answer 10

Temperature of the reaction