n a laboratory experiment, a student found that a 179-mL aqueous solution containing 2.131 g of a compound had an osmotic pressure of 17.6 mm Hg at 298 K. The compound was also found to be nonvolatile and a nonelectrolyte. What is the molar mass of this compound? g/mol
n a laboratory experiment, a student found that a 179-mL aqueous solution containing 2.131 g of a compound had an osmotic pressure of 17.6 mm Hg at 298 K. The compound was also found to be nonvolatile and a nonelectrolyte. What is the molar mass of this compound? g/mol
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:In a laboratory experiment, a student found that a 179-mL aqueous solution containing 2.131 g of a compound had an
osmotic pressure of 17.6 mm Hg at 298 K. The compound was also found to be nonvolatile and a nonelectrolyte. What is the
molar mass of this compound?
g/mol
Expert Solution
Step 1: Given values
Volume (V) = 179 ml = 0.179 L (1L = 1000ml)
Weight (w) = 2.131 gm
Osmotic pressure (π) = 17.6 mmHg= 17.6/760
= 0.02316 atm (1atm = 760 mmHg)
Temperature (T) = 298K
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