posted by Anonymous .
how many grams of dioxygen are required to burn 5.9 grams of C2H5OH?
C2H5OH + 3O2 ==> 2CO2 + 3H2O
mols C2H5OH = grams/molar mass
Convert mols C2H5OH to mols O2 using the coefficients in the balanced equation.
Now convert mols O2 to grams. g = mols x molar mass.