n1 moli glucoza + H2 ⇒ alcool
n2 moli fructoza + H2 ⇒ alcool
glucoza + 2Cu(OH)2 ⇒ acid gluconic + Cu2O + 2H2O
M glucoza = M fructoza = 180g/mol M alcool = 182 g mol
182(n1 + n2) = 182 n1 + n2 = 1
nCu2O = n glucoza n1 = 86,4/ 144 = 0,6 moli n2 = 0,4 moli
m1 = 180·0 6 % glucoza = 180·0,6·100/360 = 60%
m2 = 180·0,4 % fructoza = 180·0,4·100/360 = 40%