how many grams of water are produced if 4.0 mol of propane are burned ?

Answer 1

The balanced combustion reaction for propane is as follows:

C₃H₈ + 5 O₂ ⇔ 3 CO₂ + 4 H₂O

For a plan, we will use the following:

mol C₃H₈ → 4 mol H₂O/1 mol C₃H₈ → g H₂O/mol H₂O → g H₂O

4 mol C₃H_{8 →} 4 mol H₂O/1 mol C₃H₈ → 18 g H₂O/1 mol H₂O → 288 g H₂O

Therefore, there will be 288 grams H₂O produced if 4 mol of propane are burned.