Boiling Points

Here, we show the laboratory preparation for 10 students working in pairs, with some excess. Please adjust quantities as needed.

• Put on the necessary personal protective equipment, including a lab coat, chemical splash goggles, and gloves.
• The students will need to use both acetone and ethanol in their experiment. Label a glass bottle with the solvent name, and then pour a smaller volume of solvent from the stock bottle into the glass bottle, ensuring that there is enough for each group to have about 1 mL. Do the same for the other solvent and then place these bottles in a communal hood.
• Set out the following glassware and equipment at each student lab station (we suggest that students work in pairs):

  1    Lab stand

  1    Hotplate

  1    Lab jack

  1    Rubber band

  1    Medium 3-prong clamp

  3-4    Glass capillary tubes

  1    Pipette bulb

  2    1-mL volumetric pipettes

  2    Glass test tubes

  1    250-mL beaker

  1    25-mL beaker

  1    Digital thermometer