POST-LABORATORY QUESTIONS Due after Laboratory Experiment 1. While performing the Dumas experiment, if the outside of the flask were not completely dry (Part I), how would this affect the calculated molar mass of the unknown volatile liquid? Would it be higher or lower? Explain. 2. While determining the pressure during the Dumas experiment, if the barometric pressure reported were lower than the actual vapor pressure (Part I), how would this error affect the calculated molar mass of the unknown volatile liquid? Explain.
POST-LABORATORY QUESTIONS Due after Laboratory Experiment 1. While performing the Dumas experiment, if the outside of the flask were not completely dry (Part I), how would this affect the calculated molar mass of the unknown volatile liquid? Would it be higher or lower? Explain. 2. While determining the pressure during the Dumas experiment, if the barometric pressure reported were lower than the actual vapor pressure (Part I), how would this error affect the calculated molar mass of the unknown volatile liquid? Explain.
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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Transcribed Image Text:POST-LABORATORY QUESTIONS
Due after Laboratory Experiment
1. While performing the Dumas experiment, if the outside of the flask were not
completely dry (Part I), how would this affect the calculated molar mass of the
unknown volatile liquid? Would it be higher or lower? Explain.
2011
2. While determining the pressure during the Dumas experiment, if the barometric
pressure reported were lower than the actual vapor pressure (Part I), how would this
error affect the calculated molar mass of the unknown volatile liquid? Explain.
3. While determining the volume during this experiment (Part II), if the total volume of
the flask were incorrectly reported as 125 mL, how would this error affect the
calculated molar mass of the unknown volatile liquid? Explain.
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1o slurmol
4. Calculate the number of moles of Argon gas contained in a 4.00 dm³ container at 620.
kPa and 25.0 °C. If the gas is Helium instead of Argon, will the answer change? Explain
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