Names of Group Members Present:
1. Three identical flasks are filled with the gases H2, O2, and CO2, respectively, at room
temperature until they all have the same pressure.
a. Do the flasks have the same or different number of molecu
See extra credit question
and answer on page 2.
Compare the mol fraction of benzene in the solution phase and vapor phase. Explain the difference. (Extra credit: 1 pt)
The mol fraction of benzene increased from 0.25 in the solution phase to 0.53 in the
1. Explain the trend in the observed boiling points based on the strength of intermolecular
forces in the following substances. Identify the functional group in the organic
compounds and name them before explaining
3. Which of the following substances exhibit dipole-dipole forces in the liquid phase?
Support your answer by determining the polarity of the molecules from their molecular
geometry. Use arrows to show bond dipoles.
4. Write d