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An extract from a toboacco leaves is completely miscible in water at temperatures below 60 C....

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Chemistry

An extract from a toboacco leaves is completely miscible inwater at temperatures below 60 C. What is the molality of asolution of this extract in water which freezes at -0.450 C. Ifthis solution was obtained by dissolving 1.921 g of the extract in48.92g of water, What is the molar mass of the extract? Combustionanalysis of the extract yields 74.03% C, 8.70% H, and 17.27 % N bymass. What is the molecular formula of the extract?

Answer & Explanation Solved by verified expert
3.8 Ratings (729 Votes)
1 delta Tf Kf x m 0450 186 x molality molality 0242 m molality moles mass of solvent 0242    See Answer
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