Which is the number of moles of carbon dioxide produced from the complete combustion of 5.2 moles of ethanol? C2H6O + O2 CO2 + H2O A. 5.42 moles B. 2.71 moles C. 10.84 moles D. 16.3 moles

Question

Johnathon Werner

Chemistry

31 August, 09:05

Which is the number of moles of carbon dioxide produced from the complete combustion of 5.2 moles of ethanol? C2H6O + O2 CO2 + H2O A. 5.42 moles B. 2.71 moles C. 10.84 moles D. 16.3 moles

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Answers (1)

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Malcolm Trujillo · Answer 1

10.4 moles of carbon dioxide

Explanation:

Equation of the reaction;

C2H5OH (l) + 3O2 (g) ⟶2CO2 (g) + 3H2O (l)

In solving questions on stoichiometry, we must first be armed with the balanced chemical reaction equation as this is the basis for all the calculations to be done.

From the equation;

1 mole of ethanol produced 2 moles of carbon dioxide

Therefore, 5.2 moles of ethanol will produce 5.2 * 2/1 = 10.4 moles of carbon dioxide