How much ethane would you need to produce a liter of water in a reaction?

Question

The reaction of hydrocarbon and oxygen always produces carbon dioxide and water. Write a balanced chemical equation for the reaction of ethane (C2H6) with oxygen. If you wanted to produce a liter of water, how much ethane would you need to react? assume the density of water is 1 g/mL.

Answer 1

C2H6 + O2 → CO2 + H2O

Balance:

2C2H6 + 7O2 → 4CO2 + 6H2O

The balanced equation gives you the mole ratio.

1 L H2O x (1 gm H2O/1mL H2O) x (1000 mL H2O/1 L H2O) x (1 mol H2O/18.02 g H2O) x (2 mol C2H6/6 mol H2) x (30.07 g C2H6/1 mol C2H6) = ?

Solve this to find grams of ethane required to make one L H2O.