Question

Consider the following reaction that occurs when natural gas is burned.
CH4(g) + 2O2(g) ¨ CO2(g) + 2H2O(g)

How many moles of water are produced when 6.2 mol of methane are burned? Assume that there is more than enough oxygen present.

Answer 1

I see a number stoichiometry problems above. Here is a site that shows you how to do any of them. I recommend you print this out for future reference. It will work all of your stoichiometry problems and with a little finesse it will do limiting reagent problems, too.
http://www.jiskha.com/science/chemistry/stoichiometry.html

Answer 2

3.1

Answer 3

12

Answer 4

Answer is 12