Solubility Factors Lab
I. Fill a beaker with 50ml of water
II. Heat the water on the hot plate to about 35-40C
III. Mass one sugar cube
IV. Drop a sugar cube into the water and stir until the cube completely dissolves
V. Repeat until the water becomes so saturated with sugar that the granules stop dissolving and sink to the bottom of the beaker
VI. Repeat steps IV and V for 50ml of room temperature water(about 20C) and ice water
VII. Record the difference of how quickly the sugar cubes dissolved between temperatures into a data table
VIII. Clean up lab station
After performing the lab and studying the results of the data table, we can conclude that the warmer the solvent is (in this case, water), the higher amount of solute the solvent will be able to dissolve.From the data table you can see that as the temperature decreases, so does the number of sugar cubes dissolved without granules remaining at the bottom of the beaker.
To improve this lab, some things we could have done were to time the rate the sugar cubes dissolved more accurately.We could do this by immediately starting the timer when the sugar cube was dropped in and immediately pressing the stop button when all traces of sugar were dissolved.Throughout the lab, there were some discrepancies between the start and stop times.Another thing we could have improved on was how much we stirred each sugar cube after it was dropped in.The differences between the kinetic energies of the solvents could have affected the rate the sugar cubes dissolved.