Using the equation:
2C2H6 + 7O2--> 4CO2 + 6H20
How many moles of CO2 are produced by the reaction of 21.0 mol O2?
Again, not sure how to write it correctly, but if I multiply 7O2 by 3, then I should do the same to the other side of the equation to make it 12CO2?
2 answers
that is right.
But why don't you learn to do it right so when you have a number that isn't an even multiple, you will know how to do it. For this problem, that is
21 mols O2 x (4 mols CO2/7 mols O2) = 21 x 4/7 = 12
21 mols O2 x (4 mols CO2/7 mols O2) = 21 x 4/7 = 12
1 answer