A Sample of a Compound with a Mass of 90

question 7

Short Answer

A sample of a compound with a mass of 90.10 g is dissolved in 250.0 g of water.
The freezing point of the resulting solution is -3.72^° C.The freezing point depression constant for water is 1.86^° C/m.
Upon analysis the compound is found to consist of 39.99 % carbon,6.727 % hydrogen,and
53.28 % oxygen.
What is the molecular formula of this compound?

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