n a laboratory experiment, students synthesized a new compound and found that when 11.40 grams of the compound were dissolved to make 160.5 mL of a ethanol solution, the osmotic pressure generated was 6.03 atm at 298 K. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound?
n a laboratory experiment, students synthesized a new compound and found that when 11.40 grams of the compound were dissolved to make 160.5 mL of a ethanol solution, the osmotic pressure generated was 6.03 atm at 298 K. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound?
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter13: The Chemistry Of Solutes And Solutions
Section: Chapter Questions
Problem 70QRT
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Question
In a laboratory experiment, students synthesized a new compound and found that when 11.40 grams of the compound were dissolved to make 160.5 mL of a ethanol solution, the osmotic pressure generated was 6.03 atm at 298 K. The compound was also found to be nonvolatile and a non-electrolyte.
What is the molecular weight they determined for this compound?
Expert Solution
Step 1
Osmotic pressure = i CR
where
i = Van't Hoff factor
C = concentration in mole / L
R = universal gas constant
T = temperature
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