Task 1
Concentration and the rate of reaction
Method:
- Weight 10g of marble chips on the top-pan balance
- Une a measuring cylinder to measure out 10 cm3 of 1.00 mol dm-3 hydrochloric acid.
Pour the acid into the conical flask.
(care: 1.00 mol dm-3 hydrochloric acid is an irritant.)
- Set up the following apparatus but do not add the marble chips yet
- Add the marble chips to the conical flask and quickly stopper the flask and connect
the gas syringe. Start the stopclock at the same time.
- Mesure the volume of gas (carbon dioxide) Procedur every 20 seconds.
- Do not stop the clock between readings
- Record your results in a table
- Repeat the experiment using: 20 cm3 0.50mol dm-3 hydrochloric acid, and 40 cm3
0.25 mol dm-3 hydrochloric acid.
Concentration and the rate of reaction
Method:
- Weight 10g of marble chips on the top-pan balance
- Une a measuring cylinder to measure out 10 cm3 of 1.00 mol dm-3 hydrochloric acid.
Pour the acid into the conical flask.
(care: 1.00 mol dm-3 hydrochloric acid is an irritant.)
- Set up the following apparatus but do not add the marble chips yet
- Add the marble chips to the conical flask and quickly stopper the flask and connect
the gas syringe. Start the stopclock at the same time.
- Mesure the volume of gas (carbon dioxide) Procedur every 20 seconds.
- Do not stop the clock between readings
- Record your results in a table
- Repeat the experiment using: 20 cm3 0.50mol dm-3 hydrochloric acid, and 40 cm3
0.25 mol dm-3 hydrochloric acid.
