This week's lab requires some math. This will be unusual rather than the norm. The stated purpose of this experiment is to become familiar with techniques you will use in other experiments, such as recrystalization and melting point and boiling point determinations. It also shows you the differences in boiling point and melting point based on the polar or nonpolar nature of the molecules, a topic we discussed in class. Specific heat is discussed on pp.
Heat of vaporization is discussed on pp.
162-164 Density is discussed on pp. 22-23 PreLab 1. You now have the theoretical amount of grams which should stay in the water at the given temperature. The plots will not be the same. Both water and ethanol are capable of hydrogen bonding and are liquids at room temperature, but ethanol has an alkyl group and therefore the forces of attraction between the alcohol molecules are not as strong.