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10.4 Alcohols and carboxylic acids

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Question 10
H

A solution containing 36.0 g of glucose is completely fermented by yeast.

C6H12O6→2C2H5OH+2CO2\mathrm{C_{6}H_{12}O_{6} \rightarrow 2C_{2}H_{5}OH + 2CO_{2}}C6​H12​O6​→2C2​H5​OH+2CO2​

(MrM_rMr​: glucose = 180, ethanol = 46, carbon dioxide = 44. One mole of any gas occupies 24 dm3\mathrm{dm^{3}}dm3 at room temperature and pressure.)

Which row gives the maximum mass of ethanol and the volume of carbon dioxide at room temperature and pressure?

[1]
A

9.2 g of ethanol and 4.8 dm3\mathrm{dm^{3}}dm3 of carbon dioxide

B

18.4 g of ethanol and 4.8 dm3\mathrm{dm^{3}}dm3 of carbon dioxide

C

17.6 g of ethanol and 9.6 dm3\mathrm{dm^{3}}dm3 of carbon dioxide

D

18.4 g of ethanol and 9.6 dm3\mathrm{dm^{3}}dm3 of carbon dioxide

Markscheme

10.4 Alcohols and carboxylic acids Questions

  1. GCSE
  2. /Chemistry
  3. /10.4 Alcohols and carboxylic acids

43 exam-style questions on Edexcel GCSE Chemistry 10.4 Alcohols and carboxylic acids, covering 10.4.1 Alcohols and the -OH functional group, 10.4.2 Carboxylic acids and the -COOH functional group, 10.4.3 Oxidation of alcohols and homologous series, and 10.4.4 Fermentation and fractional distillation of ethanol. Each one has a worked solution and a mark scheme showing where the marks go.

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