If the compound is FexCly
Then
57x/(57x+35.5y) = 0.345
35.5y/(57x+35.5y) = 0.655
I get y = 3x
That is, FeCl3
When iron is heated in a steam of dry chlorine, it produce a chloride which contains 34.5 % by mass of iron which contains 65.5 % calculate the empirical formula of this chloride
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