Question

Carbohydrates are represented by the general formula Cm(H2O)n. On heating, in absence of
air, they decompose into steam (H2O) and carbon. 3.1 g of a carbohydrate, on complete
decomposition by heating in absence of air, leave a residue of 1.24 g of carbon. If the
molecular mass of the carbohydrate be 180, find the value of (m + n)

Answer 1

Explanation:

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Answer 2

The general formula of a carbohydrate is 3.1 g of the carbohydrate on heating in the absence of oxygen yields 1.24 g of carbon. The molecular mass of carbohydrate is 180u. Calculate its molecular formula.

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