In lab, you determine that the mass of a Florence flask and a piece of aluminum foil weigh 40.046 g. After performing the experiment on an unknown, you find that the flask, foil, and condensed vapors weigh 40.350 g. The flask was removed at 92.5°C when all the liquid was vaporized. At the end of the experiment you place the Florence flask and foil on the balance, fill the flask with water at 20.2°C, and find a mass of 162.785 g. If the current barometric pressure is 761 torr, what is the molar mass of your unknown?

In lab, you determine that the mass of a Florence flask and a piece of aluminum foil weigh 40.046 g. After performing the experiment on an unknown, you find that the flask, foil, and condensed vapors weigh 40.350 g. The flask was removed at 92.5°C when all the liquid was vaporized. At the end of the experiment you place the Florence flask and foil on the balance, fill the flask with water at 20.2°C, and find a mass of 162.785 g. If the current barometric pressure is 761 torr, what is the molar mass of your unknown?

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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