0.05485 g solid mixture 0.01234 M Ce^4+ 13.39 mL Cl mass percent

0.05485 g solid mixture 0.01234 M Ce^4+ 13.39 mL Cl mass percent

 

 

A solid mixture weighing 0.05485 g contained

only ferrous ammonium sulfate and ferrous chloride.

The sample was dissolved in 1 M H2SO4,

and the Fe^2+ required 13.39 mL of 0.01234 M Ce^4+

for complete oxidation to Fe^3+

(Ce^4+ + Fe^2+ → Ce^3+ + Fe^3+).

Calculate the weight percent of Cl in the original sample.

 

FeSO4•(NH4)2SO4•6H2O Ferrous ammonium sulfate FM 392.13

FeCl2•6H2O Ferrous chloride FM 234.84

 

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