In the following reaction, how many liters of oxygen will react with 270 liters of ethene (c2h4) at stp? c2h4(g) + 3o2(g) 2co2(g) + 2h2o(g) the volume of one mole of gas at stp is 22.4 liters. a) 810 liters b) 135 liters c) 90 liters d) 540 liters

                 C2H4(g)           +              3O2(g) > 2CO2(g) + 2H2O(g) 
                1 mol                                3 mol
                1*22.4L                             3*22.4 L
 given       270 L                                 x L

1*22.4L /270 L       =      3*22.4 L/ x L
1 /270 L       =      3/ x L

x= 3*270/1 = 810 L
A) 810 L

Sorry i think the answer is b