A 0.5485 g solid mixture have only ferrous chloride, Ask an Expert

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A 0.5485 g solid mixture have only ferrous chloride hexahydrate and ferrous ammonium sulfate hexahydrate. dissolved in 1M sulphuric acid get oxidized to Fe3+ with hydrogen peroxide, and get precipitated with cupferron. ( ferric cupferron complex was ignited to produce 0.167 g of ferric oxide, Fe₂O₃ ). Determine the weight % of Chlorine in original sample.

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