Question

The percent by mass of chlorine in C2H5Cl is _____%

(Answer to four significant figures.)

Answer 1

Answer:

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Explanation:

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Composition of Ethyl Chloride - C2H5Cl

Element__ Symbol___MassPercent

Carbon ----------- C ------------ 37.2343%

Hydrogen -------H ------------- 7.8118%

Chlorine -------Cl --------------54.9539%

Answer 2

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=> Molecular weight of C2H5Cl = (2×10) + 5 + 35 = 64

Mass percentage of C = 24/64 × 100 = 37.5 %

Mass percentage of H = 5/64 × 100 = 7.8%

Mass percentage of Cl = 35/64 × 100 = 54.68%