You are given an unknown ionic solid, which has a van't Hoff factor of i =...

 

Transcribed Image Text:

You are given an unknown ionic solid, which has a van't Hoff factor of i = 2. You complete the the freezing point depression experiment where you dissolve the unknown in water and determine the freezing point of the solution. You obtain the data in the table. What is the molar mass of the unknown? Data Result molar mass: mass of unknown 2.770 g total mass of unknown and water 17.374 g T₁ of pure water 0.0°C Tf of unknown solution -4.2°C The following table list several ionic compounds and their molar masses. Name of Compound silver nitrate Molar Mass (g/mol) 169.87 ammonium chloride 53.491 potassium chloride 74.551 sodium nitrate 84.995 Which of the ionic compounds in the table is most likely your unknown sample? g/mol You are given an unknown ionic solid, which has a van't Hoff factor of i = 2. You complete the the freezing point depression experiment where you dissolve the unknown in water and determine the freezing point of the solution. You obtain the data in the table. What is the molar mass of the unknown? Data Result molar mass: mass of unknown 2.770 g total mass of unknown and water 17.374 g T₁ of pure water 0.0°C Tf of unknown solution -4.2°C The following table list several ionic compounds and their molar masses. Name of Compound silver nitrate Molar Mass (g/mol) 169.87 ammonium chloride 53.491 potassium chloride 74.551 sodium nitrate 84.995 Which of the ionic compounds in the table is most likely your unknown sample? g/mol