Question

find the volume of co2 at stp formed by the combustion of 14g of ethene
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Answer 1

We have to find the volume of CO₂ at STP formed by the combustion of 14g of ethene.

solution : mass of ethene = 14g

molar mass of ethene = 28g/mol

so no of moles of ethene = 14/28 = 0.5 mole

combustion of ethene is ..

C₂H₄ + 3O₂ ⇒2CO₂ + 2H₂O

you see, one mole of ethene burns and produces 2 moles of CO₂.

∴ 0.5 mol of ethene will produce 1 mole of CO₂.

at STP.

1 mole of am ideal gas = 22.4 L

so volume of 1 mole of CO₂ gas at STP is 22.4 L

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Answer 2

Answer:

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