level: alcohols
Questions and Answers List
level questions: alcohols
| Question | Answer |
|---|---|
| what's the functional group of alcohols | OH |
| advantages and disadvantages of producing ethanol with the hydration of ethene | A- yield of ethanol is high D- requires a high temp (lots of energy), ethene comes from crude oil which is finite |
| how else can ethanol be made | fermentation |
| equation for fermentation | symbol: C6H12O6(aq) --> 2C2H5OH(aq) + 2CO2(g) |
| advantages and disadvantages of producing ethanol with fermentation | A- low temp (less energy), sugar comes from plants and is renewable D- product is an aqueous solution of ethanol and has to be purified by distillation which requires energy |
| conditions for fermentation | yeast as a catalyst, 30degrees celsius, must take place in anaerobic conditions, in a slightly acidic solution |
| general formula for alcohols | Cn + H2n+1 OH |