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Ethane burns according to the following reaction:rn2c2h6 + 7o2 → 4co2 + 6h2o + 2.86 x 103 kjrnrnhow much heat can be generated when 185 grams of oxygen gas (mw = 32 g/mol) are consumed?

Accepted Answer

Here's how to calculate the heat generated:
1. Convert grams of oxygen to moles:
185 g O2
(1 mol O2 / 32 g O2) = 5.78 mol O2
2. Use the mole ratio from the balanced equation to find moles of ethane reacted:
5.78 mol O2
(2 mol C2H6 / 7 mol O2) = 1.65 mol C2H6
3. Calculate the heat released based on the stoichiometry:
1.65 mol C2H6
(2.86 x 10^3 kJ / 2 mol C2H6) = 2.36 x 10^3 kJ
Therefore, 185 grams of oxygen gas reacting with ethane can generate 2.36 x 10^3 kJ of heat.

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