Part 1

1. Weigh 2g of Calcium metal using the electronic scale.
2. Then place the calcium into one of the flasks.
3. Measure 20 ml of Hydrochloric acid using one of the measuring cylinders.
4. Weigh 3 grams of MnO₂ and place into the flask
5. Measure 20 ml of H₂O₂ using the other measuring cylinder.
6. Add the 20 ml of H₂O₂ into the flask with 3 grams of MnO₂ and place the cork with the tubes connecting to the oxygen side of the fuel cell.
7. Then add 20 ml of HCl into the flask with calcium metal and place the cork with the tubes connecting to the Hydrogen side of the fuel cell.
8. Observe and Record the movement and speed of the motor. Repeat the experiment.

Part 2:

Follow the same steps as above using 1g, 2g and 3g of calcium metal and 10 ml, 20 ml and 30 ml of HCl respectfully.

Part 3:

Follow the same steps as in part 1using 2g of calcium metal and 10 ml, 20 ml and 30 ml of water instead of HCl.

Chemical Equations:

1. Production of Hydrogen:

Ca_(s) + 2HCI _(aq) → CaCl_{2 (aq)} + H_{2 (g)}

2.         Ca_(s) + H₂O_(l) → Ca (OH)_2(s) + H_2(g) 

3. Production of oxygen:

            2H₂O₂      ^MnO2  →    O₂ + 2H₂O