Use the law of constant composition to complete the following table summarizing the amounts of iron and chlorine produced upon the decomposition of the sample of iron(III) chloride.
Mass FeCl3 Mass Fe Mass Cl
Sample A 3.785 g 1.302 g 2.483 g
Sample B 1.975 g _____ _____

Question

Use the law of constant composition to complete the following table summarizing the amounts of iron and chlorine produced upon the decomposition of the sample of iron(III) chloride.
Mass FeCl3	 Mass Fe	 Mass Cl
Sample A	3.785 g	1.302 g	2.483 g
Sample B	1.975 g	 _____	 _____

abb0t · Answer

To obey the law of constant composition, all the elements need to be in the same proportion by mass.