Question

Analysis of skunk spray yields a molecule with 44.77% C, 7.46% H and 47.76% S. What is the chemical formula for this molecule found in the spray from skunks that scientists think is partly responsible for the strong odor?

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asked 2021-02-15
Analysis of skunk spray yields a molecule with 44.77% C, 7.46% H and 47.76% S. What is the chemical formula for this molecule found in the spray from skunks that scientists think is partly responsible for the strong odor?

Expert Answers (1)

2021-02-16
Atomic masses C = 12 g / mol H = 1 g / mol S = 32 g / mol Given masses ( assuming 100g of substance ) C = 44.77 g H = 7.46 g S = 47.76 g Moles C = 44.77 / 12 = 3.73 H = 7.46 / 1 = 7.46 S = 47.76 / 32 = 1.49 Molar ratio C : H : S = 3.73 : 7.46 : 1.49 Dividing by the smallest ratio , = 2.5 : 5 : 1 = 5 : 10 : 2 C5H10S2 is the required compound
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