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Study Plan for Practical Work
It can be difficult to get a steady flame in this experiment. It often extinguishes as a result of limited air flow. It can help to lift the calorimeter slightly clear of the base using some splints to allow more air flow. If you do not have the calorimeters shown you could just use the burner to heat up a beaker of water using a draught shield to limit loss of heat.
Materials:
| Methanol (2g) | Ethanol (2g) |
| Propan-1-ol (2g) | Butan-1-ol (2g) |
| Pentan-1-ol (2g) | Hexan-1-ol (2g) |
| Heptan-1-ol (2g) | Octan-1-ol (2g) |
| Combustion calorimeter (see video) | Vacuum line or water pump |
| Spirit burner and cap (selection) | Thermometer with accuracy of at least ± 0.5 °C |
| Top pan balance reading to at least ± 0.01 g |
If you are confident of an individual's calculating skills don't give them sheet 3 from the Students' worksheet.