Question

700
Solution C10 contains 1.45 gms of impure
sample of potassium manganate (VII) KMnO4
per litre of solution. And solution C17 contains
20.5 gms of pure hydrated ammonium iron (II)
sulphate (NH4)2SO4 FeSO4.6H20 per litre of
solution.
Solution Cho is filled in the burette and titrated
with 20 ml of solution C11. The titre value of
C10 is found to be 23.9 ml. lonic reaction is
as follows:
2MnO4 + 10 Fe2+ + 16 H*
2 Mn2+ + 10 Fe3+
+8 H20
[K=39, Fe=56, S= 32,N=14, Mn =55, H = 1
and 0 = 16]​

Answer 1

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