J.R. S. answered 09/16/21
Ph.D. University Professor with 10+ years Tutoring Experience
Fe2+(aq) + H2CC2O4(aq) + 2H20(l) ==> FeC2O4(s) + 2H3O+(aq)
Atom economy is essentially the % of desired product relative to total product (on a mass basis), or ...
molar mass of desired product / sum of molar mass of all products (x100%)
molar mass FeC2O4 = 144 g/mol
molar mass H3O+ = 19 g/mol
Sum = 144 + 19 = 163
Atom economy = 144 / 163 (x100%) = 88.3%
e factor = mass of waste product / mass of desired product
e factor = 19 / 144 = 0.132
Do the others the same way