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How will the unknown’s reported molar mass be affected in each of the following cases  The atmospheric pressure is recorded too high. A small piece of the foil cap was lost before the final mass was measured.  Condensed water vapor from the bath was trapped underneath the foil cap. The vapor’s volume is assumed to be 125 mL (marked on the side of the flask) instead of the measured volume of the flask. Heating the flask too long resulted in air outside the flask entering and displacing some of the vapor inside the flask. The thermometer is miscalibrated and reads a constant amount too low over its entire temperature range.

How will the unknown’s reported molar mass be affected in each of the following cases  The atmospheric pressure is recorded too high. A small piece of the foil cap was lost before the final mass was measured.  Condensed water vapor from the bath was trapped underneath the foil cap. The vapor’s volume is assumed to be 125 mL (marked on the side of the flask) instead of the measured volume of the flask. Heating the flask too long resulted in air outside the flask entering and displacing some of the vapor inside the flask. The thermometer is miscalibrated and reads a constant amount too low over its entire temperature range.

Chemistry: An Atoms First Approach
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter8: Gases
Section: Chapter Questions
Problem 30Q
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  • How will the unknown’s reported molar mass be affected in each of the following cases 
    • The atmospheric pressure is recorded too high.
    • A small piece of the foil cap was lost before the final mass was measured. 
    • Condensed water vapor from the bath was trapped underneath the foil cap.
    • The vapor’s volume is assumed to be 125 mL (marked on the side of the flask) instead of the measured volume of the flask.
    • Heating the flask too long resulted in air outside the flask entering and displacing some of the vapor inside the flask.
    • The thermometer is miscalibrated and reads a constant amount too low over its entire temperature range. 
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