Top topic this week
Back to FAQs
Related FAQs
Frequently Asked Question
Questions asked by users might not always be phrased in the clearest way.
Ethane burns according to the following reaction:rnc3h8 + 5o2 → 3co2 + 4h2o + 2.04 x 103 kjrnrnhow much heat is produced when 150 grams of oxygen gas are consumed?
Accepted Answer
Here's how to solve that:
1. Convert grams of oxygen to moles:
Molar mass of O2 = 32 g/mol
Moles of O2 = (150 g) / (32 g/mol) = 4.69 mol
2. Use the stoichiometry of the reaction:
5 moles of O2 produce 2.04 x 10^3 kJ of heat
3. Calculate the heat produced:
Heat produced = (4.69 mol O2)
(2.04 x 10^3 kJ / 5 mol O2) = 1.91 x 10^3 kJ
Therefore, 150 grams of oxygen gas consumed will produce 1.91 x 10^3 kJ of heat.
Articles you might like