Part A Use the law of constant composition to complete the following table summa

Question

Part A 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 irondit chiod Mass FeCls Mass Fe Mass C Sample A 3.785g 1.302 g 2.483 g Sample B1.275 g Express your answer using four significant figures. Enter your answers numerically separated by a comma Submit My Answers Give Up Part B Use the law of constant composition to complete the following table summarizing the amounts of iron and chlonine produced upon the decomposition of the sample of iron(ll) chloride Sample A 3.785 g 1.302 g2.483 g Sample C Express your answer using four significant figures. Enter your answers numerically separated by a comma. Mass FeCly Mass Fe Mass Cl 2.312 g -

Explanation / Answer

1)

use ratio:

ratio of mFeCl3 = ratio of mFe

3.785/1.275 = 1.302/mFe

mFe = 0.4386 g

ratio of mFeCl3 = ratio of Cl

3.785/1.275 = 2.483/mFe

mFe = 0.8364 g

Answer: 0.4386, 0.8364 g

2)

ratio of mFeCl3 = ratio of mFe

3.785/mFeCl3 = 1.302/2.312

mFeCl3 = 6.721 g

ratio of Cl = ratio of mFe

2.483/mCl = 1.302/2.312

mCl = 4.409 g

Answer: 6.721 ,4.409 g

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