Question

If I have 2.5L of propane at STP, how many grams of water can be produced by this combustion?

Answer 1

I know STP is 22.4 L, but I need more help

Answer 2

so, you have 2.5/22.4 = 0.1116 moles of propane
Now look at the reaction equation for the combustion to see how many moles of water that will produce
then convert that to grams

Answer 3

Ok so this is the equation:

C3H8 + 5O2 = 3CO2 + 4H2O

What do I have to do next?

Answer 4

So you have 0.1116 mols propane. According to your balanced equation, 1 mol C3H8 will produce 4 mols H2O. That means 0.1116 mols C3H8 will produce .......mols H2O.

Answer 5

Ahh, I get it now thank you