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JEE MainChemistrySome Basic Concepts of Chemistry

An organic compound is known to contain 40 % carbon by mass. When 1.5 g of this compound is subjected to complete combustion, the mass of carbon dioxide produced is x 10⁻¹ g . The value of x is

Correct answer

22

Step-by-step solution

Mass of carbon in the organic compound = 40 % of 1.5 g Mass of carbon = 40 100 1.5 = 0.6 g Moles of carbon present = 0.6 12 = 0.05 mol During complete combustion, all the carbon is converted into CO ₂ . Moles of CO ₂ produced = Moles of carbon = 0.05 mol Mass of CO ₂ produced = 0.05 44 = 2.2 g Equating this to the given expression: 2.2 = x 10⁻¹ x = 22 Answer: 22

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