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1) The normal freezing point of ethanol (CH3CH2OH) is -117.300 °C and its Kfp value is 1.99 °C/m. 

In a laboratory experiment, students synthesized a new compound and found that when 14.50 grams of the compound were dissolved in 286.0 grams of ethanol, the solution began to freeze at -117.413 °C. The compound was also found to be nonvolatile and a nonelectrolyte.

What is the molecular weight they determined for this compound? 

__________ g/mol

2) The normal boiling point of ethanol CH3CH2OH is 78.500 °C and its Kbp value is 1.22 °C/m.

In a laboratory experiment, students synthesized a new compound and found that when 12.50 grams of the compound were dissolved in 205.0 grams of ethanol, the solution began to boil at 78.758 °C. The compound was also found to be nonvolatile and a nonelectrolyte.

What is the molecular weight they determined for this compound?

__________ g/mol

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