Answered: The nonvolatile, nonelectrolyte aspirin…

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter13: Solutions And Their Behavior

Section: Chapter Questions

Problem 90IL: In a police forensics lab, you examine a package that may contain heroin. However, you find the...

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Question

A) The nonvolatile, nonelectrolyte aspirin , C₉H₈O₄ (180.1 g/mol), is soluble in diethyl ether CH₃CH₂OCH₂CH₃.

How many grams of aspirin are needed to generate an osmotic pressure of 8.31 atm when dissolved in 193 ml of a diethyl ether solution at 298 K.

grams aspirin

B)
In a laboratory experiment, students synthesized a new compound and found that when 14.80 grams of the compound were dissolved to make 222.2 mL of a benzene solution, the osmotic pressure generated was 7.18 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?

g/mol

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