Question

If 0.500 mol of acetylene is allowed to completely react with oxygen, what is the final yield of CO2 in moles?

2C2H2(g)+ 5O2(g) - 4CO2(g) + 2H2O(g)
acetylene

Answer 1

1.00 moles of CO2 is the final yield.

Step-by-step explanation:

Based on the reaction:

2C2H2(g)+ 5O2(g) → 4CO2(g) + 2H2O(g)

When 2 moles of acetylene (C2H2) completely reacts with oxygen, 4 moles of CO2 are produced.

To solve this question we must use the chemical equation knowing: 2 moles C2H2 = 4 mol CO2

When 0.500 moles of acetylene react:

0.500 moles C2H2 * (4mol CO2 / 2mol C2H2) =

1.00 moles of CO2 is the final yield