SolutionHard
Question
A complex of iron and cyanide ions is 100% ionised at 1m (molal). If its elevation in b.p. is 2.08. Then the complex is (Kb = 0.52o mol-1 kg) :
Options
A.K3[Fe(CN)6]
B.Fe(CN)2
C.K4[Fe(CN)6]
D.Fe(CN)4
Solution
ᐃTb = ikb m
so i =
= 4
so the compex is K3 [Fe(CN6)]
K3 [Fe(CN)6] ⇋ 3 K+ + [Fe(CN)6]3-
so i =
= 4so the compex is K3 [Fe(CN6)]
K3 [Fe(CN)6] ⇋ 3 K+ + [Fe(CN)6]3-
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