PRE-LAB QUESTIONSIn a chemical reaction between iron and sulfur to produce Fe S, it was found that 12.92 g ofsulfur reacted completely with 15.00 g of iron. What is the empirical formula of the compound?1.Che mi colEnparicalA compound is composed of 5.07 g oxygen atom and 40.27 g copper atom. What is the empiri-cal formula of the compound?2.SY

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Asked Sep 17, 2019
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PRE-LAB QUESTIONS
In a chemical reaction between iron and sulfur to produce Fe S, it was found that 12.92 g of
sulfur reacted completely with 15.00 g of iron. What is the empirical formula of the compound?
1.
Che mi col
Enparical
A compound is composed of 5.07 g oxygen atom and 40.27 g copper atom. What is the empiri-
cal formula of the compound?
2.
SY
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PRE-LAB QUESTIONS In a chemical reaction between iron and sulfur to produce Fe S, it was found that 12.92 g of sulfur reacted completely with 15.00 g of iron. What is the empirical formula of the compound? 1. Che mi col Enparical A compound is composed of 5.07 g oxygen atom and 40.27 g copper atom. What is the empiri- cal formula of the compound? 2. SY

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Empirical formula of a compound represents the proportion of the elements in a compound irrespective of the numbers of atoms arranged in the molecule of the compound.

Moles of iron and sulfur are calculated using given data,

Mass of Sulfur = 12.92g; mass of Iron=1...

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As known mass mol = molar mass Hence, mass of Fe mol Fe molar mass of Fe 15.0 g 0.2686 mol 55.845 g/mol mass of S mol Smolar mass of S 12.92 g 32.065 g/mol -0.4029 mol

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