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.

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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.
Tbrurod
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
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. Tbrurod 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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