Question

Acetylene gas is often used in welding torches because of the very high heat produced when it reacts with oxygen gas, producing carbon dioxide gas and water vapor. Calculate the moles of water produced by the reaction of of oxygen.

Answer 1

Answer:

one mole of oxygen will produce $0.4$ moles of water

Explanation:

The balanced chemical reaction is as follows -

2 C2H2 + 5 O2 --> 4 CO2 + 2 H2O

As we can see in this reaction

5 mole of oxygen (on the reactant side) will produce 2 mole of water (on the product side)

Hence, one mole of oxygen will produce $\frac{2}{5} =0.4$ moles of water