CH3COOH + HOOCC2H5 + HOOC-CO-CH3
acid acetic ac. propionic ac. piruvic
=> A = CH3CH=CH-C-CH3
ll
CH-C2H5
A = C8H14 , 4-metil-2,4-heptadiena
23,1 g
A + 7[O] --> produsi /x3
3x110
n moli
K2Cr2O7 + H2SO4 --> K2SO4 + Cr2(SO4)3 + H2O + 3[O] /x7
7
=> n = 23,1x7/3x110 = 0,49 moli K2Cr2O7
Cm = n/Vs => Vs = n/Cm = 0,49/0,49 = 1 L sol. K2Cr2O7
=> b.