Question

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

Answer 1

A, I believe it is 810liters of oxygen! Please correct me if im wrong

Answer 2

                 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