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Calculate the energy required to produce 9.00 mol of Cl₂O₇ based on the following balanced equation. 2Cl₂(g) + 7O₂(g) + 130 kcal → 2Cl₂O₇
For 2 mol you need 130 kcal, so how much would you need for 9.00 mol?

9.00 kcal
65 kcal
585 kcal
1,170 kcal

Respuesta :

superman1987

Answer:

585 kcal .

Explanation:

  • From the balanced equation:

2Cl₂(g) + 7O₂(g) + 130 kcal → 2Cl₂O₇.

130 kcal are needed to produce 2 mol of Cl₂O₇.

Using cross multiplication:

130 kcal are needed to produce → 2 mol of Cl₂O₇.

??? kcal are needed to produce → 9 mol of Cl₂O₇.

∴ The energy required to produce 9.00 mol of Cl₂O₇ = (130 kcal)(9 mol)/(2 mol) = 585 kcal.

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