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A compound is found to contain …

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A compound is found to contain 54.67% of carbon 9.1% of hydrogen and the remaining is oxygen. Vapour density of the compound is 22. Calculate its molecular formula
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Anjan Karthi 9 months, 2 weeks ago

No of moles of C = 54.67 (out of 100g) / 12 = 4.5 . No of moles of H = 9.1 / 1 = 9.1 . No of moles of O = (100 - 63.77) / 16 = 2.25 . Therefore, ratio of empirical formula = C:H:O = 2:4:1 . So, empirical formula = C2H4O (Mass = 24 + 4 + 16 = 44) So, N = M/EM = 2 × 22/44 = 1.// Therefore, molecular formula = C2H4O. //
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