Question

La 2 si 3 nu sunt asa sigura ca am facut corect. Multumesc!

Answer 1

initial :
 n1 moli C2H2 + 2Cl2 = C2H2Cl4
n2 moli  C2H4 + Cl2 = C2H4Cl2
2n1+ n2 = 8/5 ·(n1 + n2)     10n1 + 5n2 = 8n1 + 8n2      2n1 = 3n2     n1 = 1,5n2
n amestec = n1 + n2 = 2,5n2      m1 = 26n1    m2= 28n2
%C2H2 = 1,5n2x100/(2,5n2) = 60% %C2H4 = n2x100/(2,5n2) = 40% (pr.mol.)
%C2H2 = 1,5n2x26x100/(67n2) = 58,2%   %C2H4 = 28n2x100/(67n2) =
= 41,8%
2. Vo/V = To/T    V = 2,5n2x22,4x300/273 = 61,538n2   m = 67n2
q = 67/61,538 = 1,088g/l
3.  Cl2CH-CHCl2 + 2H2O ⇒ O=CH-CH=O + 4HCl
O=CH-CH=O + 2HCN ⇒ NC-CH(OH)-CH(OH)-CN + 4H2 ⇒
⇒ H2N-CH2-CH(OH)-CH(OH)-CH2-NH2