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The heat of combustion of ethene (C2H4) is -1409.3 kj/mol. Calculate the weight of Ethene required to produce 470kj of heat on combustion

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The molecular mass of ethene = 28.05gm

C2Hrequired = 470 x 28.05 /1409.3  = 9.35

So the required weight of ethene =  9.35 gm

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