Ethylene (c2h4) is the starting material for the preparation of polyethylene. although typically made during the processing of petroleum, ethylene occurs naturally as a fruit-ripening hormone and as a component of natural gas. the heat of reaction for the combustion of c2h4 is −1411 kj/mol. how many grams of c2h4 must burn to give 59.0 kj of heat?

1.17 grams

Explanation:

Let's consider the balanced equation for the combustion of ethylene.

C₂H₄(g) + 3 O₂(g) → 2 CO₂(g) + 2 H₂O(l)

We can establish the following relations:

The grams of C₂H₄ burned to give 59.0 kJ of heat (q = -59.0 kJ) is:

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