Using the balanced equation shown below, calculate the mass of C3H8 that must react in order to release 2.850x106 kJ of heat.

Question

Question

Using the balanced equation shown below, calculate the mass of C3H8 that must react in order to release 2.850x10⁶ kJ of heat.

C3H8(g) +5O2 (8) → 3CO2(g) + 4H2O(g) ΔHrxn=-2219.9 kJ/mol

Answer 1

Answer #1

From balanced chemical reaction,

2219.9 kJ heat required ---> 44.0 g C3H8

2.850×10⁶ kJ heat required -->

=44.0×2.85×10⁶/2219.9

= 56489.0 g

Answer 2

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