> Chemistry help! Please!?

Chemistry help! Please!?

Posted at: 2014-06-09 
I can't solve this. What mass of propane(C 3 H 8) is needed to produce 346 g carbon dioxide in the following reaction? C3H8 (g)+5O2 (g)----> 3CO2 (g)+4H2O (g) A-5075g C3H8 B-115g C3H8 C-1.86g C3H8 D-346g C3H8 If you can please explain it..so that I could solve problems like this in the future. Thank you! !