Question

The heat of combustion of ethene (c2h4) is -1409.3 kj/mol. Calculate the weight of Ethene required to required to produce 470 kJ of heat on combustion

Answer 1

Explanation:

molar mass of ethene is 28

so

1409.3 -------- 28

1. ---------. 28/1409.3

470. --------. 28/1470*470 = 9.8

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