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4. A solution was prepared by adding 20.0 g of compound “A" to 125 g of water at 25 °C. The observed vapour pressure of the solution was found to be 22.67 mm of Hg. Provided that the vapour pressure of the pure water is 23.3 mm Hg at 25 °C. Determine the molar mass of A. [2]

4. A solution was prepared by adding 20.0 g of compound “A" to 125 g of water at 25 °C. The observed vapour pressure of the solution was found to be 22.67 mm of Hg. Provided that the vapour pressure of the pure water is 23.3 mm Hg at 25 °C. Determine the molar mass of A. [2]

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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4. A solution was prepared by adding 20.0 g of compound “A" to 125 g of water at 25 °C. The observed vapour pressure of the solution was found to be 22.67 mm of Hg. Provided that the vapour pressure of the pure water is 23.3 mm Hg at 25 °C. Determine the molar mass of A. [2]
Transcribed Image Text:4. A solution was prepared by adding 20.0 g of compound “A" to 125 g of water at 25 °C. The observed vapour pressure of the solution was found to be 22.67 mm of Hg. Provided that the vapour pressure of the pure water is 23.3 mm Hg at 25 °C. Determine the molar mass of A. [2]
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