Glucoza + 2Cu(OH)2 ⇒ acid gluconic + Cu2O↓ + H2O
nCu2O = n glucoza = 50,05/144 moli m glucoza = 180·50,05/144 =≈ 63g
n hexitol = n glucoza + n fructoza = 81,9 /182 = 0,45 moli
(C6H14O4) M = 182g/mol
0,35 + n fr. = 0,45 m fr, = 0,1 moli m fr. = 18g
% gl. = 63·100/81 = 77,77%
% fr. = 18·100/81 22,22%