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Lab # 5 Synthesis of Alum from Aluminum

Lab # 5 Synthesis of Alum from Aluminum - flammable gas was...

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Matthew Li X02318356 CHE1111L-0 Experiment # 8: Synthesis of Alum from Aluminum Locker # 358 October 24, 2011 Post Lab Questions:
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1. Why is necessary to recrystallize the alum? It was necessary to recrystallize the alum because we needed to remove any H2O and ethanol that was leftover on the crystals. 2. Why is it necessary to perform the experiment in a well ventilated area? It was necessary to perform the experiment in a well ventilated area because H2, a
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Unformatted text preview: flammable gas, was a product in some of the reactions. 4. What is the trap and what is its purpose? In vacuum distillations & filtrations a trap is used to stop liquids and vapors from entering the vacuum pump. The trap usually consists of a tube connected between the vacuum pump and the apparatus....
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Lab # 5 Synthesis of Alum from Aluminum - flammable gas was...

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