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[主观题]
The sugar fructose contains 40.0%C,6.7%H,and 53.3%O by mass. A solution of 11.7g of fructose in 325g
of ethanol has a boiling point of 78.59℃. The boiling point of ethanol is 78.35℃,and Kbfor ethanol is 1.20K·kg·mol-1. What is the molecular formula of fructose? (C6H12O6)
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