Name: ____________________________________________________ Date: ___________________________ Period: _________________ Universal Solvent Inquiry Lab Purpose: If eight different materials are stirred into water, which of them will dissolve? Hypothesis: __________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________ Materials: Kool Aid Mix Oil Honey Bullion Cube Vinegar Soap Flakes Procedure: Sand Flour 250 mL beaker Water Stirring Rod 1. Go to the assigned station. 2. Obtain an empty 250 mL beaker and put 100 mL of water in it. 3. Fill out the prediction column in the data table for the substance at that station. 4. Sprinkle (or pour) a small, quarter-sized amount of the first material into the beaker of water. 5. Stir for 1-2 minutes. 6. Write down the results on the data table in the “Did It Dissolve?” Column. 7. Dump your solution down the drain, rinse out the beaker, and put the materials back the way you found them. 8. Move to the next station and repeat steps 2-7. Data: Substance Kool Aid Oil Honey Bullion Cube Vinegar Soap Flakes Sand Flour Prediction: Will It Dissolve? Did It Dissolve? (Yes/No) (Yes/No) Polar or Nonpolar? Discussion Questions: 1. Is water polar or nonpolar? _________________________________________________________________________________ _________________________________________________________________________________________________________________ 2. What is a solvent? ___________________________________________________________________________________________ _________________________________________________________________________________________________________________ 3. What is a solute? _____________________________________________________________________________________________ _________________________________________________________________________________________________________________ 4. What is a solution? ___________________________________________________________________________________________ _________________________________________________________________________________________________________________ 5. Did all the substances dissolve in water? Why or why not? ______________________________________________ _________________________________________________________________________________________________________________ 6. Which substances did not dissolve in water? Explain why they did not dissolve. ______________________ _________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________ 7. In this lab, what is the solvent? _____________________________________________________________________________ _________________________________________________________________________________________________________________ 8. Explain why water is considered the universal solvent. Be specific. _____________________________________ _________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________ 9. Which substances are considered solutes? ________________________________________________________________ _________________________________________________________________________________________________________________