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It is desired to determine the molecular weight of an organic compound known to be volatile. For this, a glass balloon with a full volume of 152 mL is weighed and the weighing result is recorded as 215 g. Then, the organic compound that is desired to have some molecular weight in liquid form is added into the balloon and evaporated in a water bath until dryness. After the steam temperature is measured as 90 °C, the balloon is left to cool and the organic compound in the balloon condenses again. The balloon is then weighed again and recorded as 215,367g. Find the molecular weight of this organic compound since the pressure of the environment where the experiment is performed is 700 mmHg.

It is desired to determine the molecular weight of an organic compound known to be volatile. For this, a glass balloon with a full volume of 152 mL is weighed and the weighing result is recorded as 215 g. Then, the organic compound that is desired to have some molecular weight in liquid form is added into the balloon and evaporated in a water bath until dryness. After the steam temperature is measured as 90 °C, the balloon is left to cool and the organic compound in the balloon condenses again. The balloon is then weighed again and recorded as 215,367g. Find the molecular weight of this organic compound since the pressure of the environment where the experiment is performed is 700 mmHg.

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 5.24QE
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It is desired to determine the molecular weight of an organic compound known to be volatile. For this, a glass balloon with a full volume of 152 mL is weighed and the weighing result is recorded as 215 g. Then, the organic compound that is desired to have some molecular weight in liquid form is added into the balloon and evaporated in a water bath until dryness. After the steam temperature is measured as 90 °C, the balloon is left to cool and the organic compound in the balloon condenses again. The balloon is then weighed again and recorded as 215,367g. Find the molecular weight of this organic compound since the pressure of the environment where the experiment is performed is 700 mmHg.
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