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natita [175]
2 years ago
8

31. Use the equation given below to answer the following question: If 755 kJ of heat was absorbed, what mass of carbon dioxide r

eacted?
2CO2 + 43.9 kJ → 2CO +O2
Chemistry
1 answer:
brilliants [131]2 years ago
8 0

Answer:

1514g of CO₂ reacted

Explanation:

Based on the reaction:

2CO₂ + 43.9kJ → 2CO + O₂

<em>2 moles of carbon dioxide require 43.9kJ of energy to produce 2 moles of carbon monoxide and 1 mole of oxygen</em>

<em />

To solve this question, we must convert the 755kJ of energy to moles of carbon dioxide that reacts and to find the mass as follows:

755kJ * (2 moles CO₂ / 43.9kJ)  =34.4 moles of CO₂ are produced

<em>Mass CO₂: Molar mass: 44.01g/mol</em>

34.4 moles CO₂ * (44.01g / mol) =

<h3>1514g of CO₂ reacted</h3>
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