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5/24/2018 10ggrasimese-slidepdf.com http://slidepdf.com/reader/full/10-g-grasime-se 1/2 10 g grasime se trateaza cu 200 g solutie de iod 10 %. Excesul de iod se poate aditiona la 0,224 l etena (c.n) . Indicele de iod al grasimii (indicele de iod al unei grasimi reprezinta grame de iod aditionat la 100 g grasime ) este : 8.! , 14," , 12 , 14" , 1#,! $e determina masa de iod din 200 g solutie de concentratie 10% 100 g solutie iod.10 g iod 200 g solutie iodx x & 20 g iod $e determina masa de iod in exces 22,4 '.24g * 2 &* 2  + I 2   I-* 2 -* 2 -I 0,224 '.x x & 2,4 g iod exces $e determina masa de iod care a reactionat 20-2,4 & 1,4" g I 2 $e determina cira de iod 10 g grasime..1,4" g iod 100 g grasimex x&14," g iod

10 g grasime se

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10 g grasime setrateaza cu 200 g solutie de iod 10 %. Excesul de iod se poate aditiona la 0,224 l etena (c.n) . Indicele de iod al grasimii (indicele de iod al unei grasimi reprezinta grame de iod aditionat la 100 g grasime ) este : 87.3 , 174,6 , 127 , 146 , 197,3

Se determina masa de iod din 200 g solutie de concentratie 10%

100 g solutie iod.10 g iod

200 g solutie iodx

x = 20 g iod

Se determina masa de iod in exces

22,4 L.254g

CH2=CH2 + I2 I-CH2-CH2-I

0,224 L.x

x = 2,54 g iod exces

Se determina masa de iod care a reactionat

20-2,54 = 17,46 g I2Se determina cifra de iod

10 g grasime..17,46 g iod

100 g grasimex

x=174,6 g iod