n1 moli CH3-CH=CH-CH3 + 4[O] = 2CH3-COOH
n2 moli CH2=CH-CH3 + 5[O] = CH3-COOH + CO2 + H2O
2KMnO4 + 3H2SO4 = K2SO4 + 2MnSO4 + 3H2O + 5[O]
n initial KMnO4 = 2·4 = 8moli
au reactionat : 8/5 ·n1 + n2 = 1,6n1 + n2 au ramas : 8-(1,6n1+n2)
(8 - 1,6n1 - n2)/8 = 0,1 8 - 1,6n1 - n2 = 0,8 1,6n1 + n2 = 7,2
(2n1+n2)/(n1 + n2) = 1,5 2n1 + n2 = 1,5n1 + 1,5n2 0,5n1 = 0,5n2 n1 = n2
2,6n1 = 7,2 n1 = 72/26 = 36/13 moli = n2
m = 36/13 (56 + 42) = 36/13 · 98 = 271,384g