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Higher Chemistry (revised C273 12)
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UNIT - Consumer Chemistry (FE4F 12)
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- Alcohols
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Ethanol production
The concentration of ethanol in a sample can be measured using a standard method used by HM Revenue and Customs. 25cm3 of water are added to 50cm3 of the solution being tested. The mixture is distilled, with the first 50cm3 of distillate being collected. The density of the distillate is measured and this value is converted into the concentration of alcohol using a look-up table. Details of this method in addition to volumetric and colorimetric methods are available.
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ETHANOL
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UNIT - Principles to Production (FE4D 12)
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- Getting the most from costly reactants
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Calculations concerning reactions which involve solutions, assuming complete conversion of reactant(s).
'Colour Match Challenge'........If available, a colorimeter can be used to provide an impartial judgement.
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