Question

How many moles of O2 are required for the complete reaction of 45 g of C2H4 to form CO2 and H2O?

Answer 1

C2H4+3O2 gives 2CO2+2H2O is the balanced equation. there are 1.6 moles of ethene in 45g. if one mole requires three moles then 1.6 miles require 4.8moles

Answer 2

4.8 moles of O2 are required for the complete reaction of 45 g of C2H4 to form CO2 and H2O.

How many moles of CO2 are produced from 1 mole of C2H4?

• This chemical equation tells us that any time we put in one mole of C2H4, we make 2 moles of CO2.

According to the question:

C2H4+3O2 gives 2CO2+2H2O is the balanced equation.

There are 1.6 moles of ethene in 45g.

If one mole requires three moles then 1.6 miles require 4.8 moles.

Hence, 4.8 moles of O2 are required for the complete reaction of 45 g of C2H4 to form CO2 and H2O.

What is stoichiometry and why is it important?

• Stoichiometry is the calculation of quantities in chemical equations.
• Given a chemical reaction, stoichiometry tells us what quantity of each reactant we need in order to get enough of our desired product.

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