Problem: A solution of urea [(NH2)2CO] (MM: 60 g/mol) in water has a vapor pressure 2.50 mmHg less than that of pure water at 30°C (The vapor pressure of water at 30°C is 31.8 mmHg). a. What is the mole fraction of urea in this solution?     b. How many grams of urea does this correspond to?  

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A solution of urea [(NH2)2CO] (MM: 60 g/mol) in water has a vapor pressure 2.50 mmHg less than that of pure water at 30°C (The vapor pressure of water at 30°C is 31.8 mmHg).

a. What is the mole fraction of urea in this solution?

 

 

b. How many grams of urea does this correspond to?

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