When 14.3 g of a certain molecular compound X are dissolved in  85.0 g of benzene C6H6, the freezing point of the solution is measured to be 0.5 °C. Calculate the molar mass of X.   molal freezing point depression constant (Kf)°C·kg·mol−1 of benzen is 5.07   If you need any additional information on benzene, use only what you find in the ALEKS Data resource. Also, be sure your answer has a unit symbol, and is rounded to  2  significant digits.

Question

When 14.3 g of a certain molecular compound X are dissolved in 

85.0 g of benzene C6H6, the freezing point of the solution is measured to be 0.5 °C. Calculate the molar mass of X.
 
molal freezing point depression constant (Kf)
°C·kg·mol−1 of benzen is 5.07

 

If you need any additional information on benzene, use only what you find in the ALEKS Data resource. Also, be sure your answer has a unit symbol, and is rounded to 

2

 significant digits.

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