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प्रश्न
A hydrocarbon contains 4.8g of carbon per gram of hydrogen. Calculate Find molecular formula, if its vapour density is 29.
संख्यात्मक
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उत्तर
Empirical formula mass = 29
Molecular mass = V.D × 2 = 29 × 2 = 58
n = `"Molecular weight"/"E. Formula wt"`
= `58/29`
= 2
∴ Molecular formula = 2(Empirical formula)
= 2 [C2H5] = C4H10
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