If the decomposition of 3.785 g iron (III) chloride yields 1.302 g iron and 2.483 g chlorine, how many grams of iron and chlorine are produced when 2.175 g iron (III) chloride decomposes?
Chemistry - DrBob222, Wednesday, September 29, 2010 at 12:57am
2FeCl3 3.785g   2.175g
2Fe 1.302   x
3Cl2 2.483   y
I would do it this way.
For Fe, x = 1.302 x (2.175/3.785) = 0.758 g
For Cl2 2.175-0.758 = 1.427 g