7a rates of reaction

Question 1

steps in full

Answer 1

Measure 50 cm3 of the 1.0 mol dm–3 hydrochloric acid and add to conical flask.
• Set up the gas syringe in the stand.
• Weigh 0.20 g of magnesium.
• Add the magnesium ribbon to the conical flask, place the bung firmly into the top of the flask and start the
stopwatch.
• Record the volume of hydrogen gas collected in 30 seconds.
• Repeat using different concentrations of HCl

Question 2

1

Answer 2

Measure 50 cm3 of the 1.0 mol dm–3 hydrochloric acid and add to conical flask.
•

Question 3

2

Answer 3

Set up the gas syringe in the stand.

• Weigh 0.20 g of magnesium.

Question 4

3

Answer 4

• Add the magnesium ribbon to the conical flask, place the bung firmly into the top of the flask and start the
stopwatch.

Question 5

4

Answer 5

• Record the volume of hydrogen gas collected in 30 seconds.

Question 6

5

Answer 6

• Repeat using different concentrations of HCl