Organic chemistry

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Question 4
Easy

Alcohols can be used as fuels. The table below shows the energy released when 1.00 g of different alcohols is completely burned.

AlcoholFormula of one molecule of the alcoholEnergy released in kJ/g\text{kJ/g}kJ/g
EthanolC2H5OH\text{C}_2\text{H}_5\text{OH}C2​H5​OH29.6
PropanolC3H7OH\text{C}_3\text{H}_7\text{OH}C3​H7​OH33.6
ButanolC4H9OH\text{C}_4\text{H}_9\text{OH}C4​H9​OH36.1
PentanolC5H11OH\text{C}_5\text{H}_{11}\text{OH}C5​H11​OH37.7
HexanolC6H13OH\text{C}_6\text{H}_{13}\text{OH}C6​H13​OH38.9
HeptanolC7H15OH\text{C}_7\text{H}_{15\text{OH}}C7​H15OH​39.8

Calculate the mass of propanol that must be burned to release the same amount of energy as burning 1.00 g of hexanol.

Give your answer to 3 significant figures.

[3]

Organic chemistry Questions

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