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Study Plan for Practical Work
You will need to check for fast flow rates of water through the reflux condenser.
If time permits a longer reflux time is desirable. Oxidation is often incomplete, but effervescence with the sodium carbonate is seen by most student groups.
Materials:
| Concentrated sulfuric acid (2 cm3) | Sodium dichromate(VI) (6 g) |
| Anti-bumping granules | Propan-1-ol (1.5 cm3) |
| Benedict's solution (5 cm3) | 1M sodium carbonate (5 cm3) |
| 50 cm3 pear-shaped flask | 10 cm3 measuring cylinder |
| Tripod and gauze | Bunsen burner |
| Funnel | Expansion adapter |
| Heat-proof mat | Liebig condenser |
| Rubber tubing | Boiling tube |
| Powder funnel | Still head |
| Glass bend | Joint clip |
| Stopper | Disposable gloves |
| Test tubes (2) | Test tube rack |
| Laboratory jack or alternative | Dropping pipette |
| Top pan balance reading to the nearest ± 0.1 g |