Unit 3: Chemical Formulas and Reactions

Solubility Experiments:

You may do any one of the following experiments. If you need better equipment than you have at home, you may bring materials in to the chemlab and use the school=s equipment to do your experiment. Make arrangements with your instructor for a time.

---

Experiment #1. Does the temperature of the solvent affect the amount of sugar that will dissolve? (20-26 points)

Procedure:

1. Write an Introduction that defines solute, solvent, and solute and explains what happens when ionic and covalent compounds dissolve.  Also identify you dependent and independent variables in your experiment.

2. Design an experiment to test the above question. 

3. Report your procedure, data, and conclusions. 

4. Make a line graph to show the relationship between your two variable,. 

5. Include a works cited page with internal citations (following MLA Style)

---

Experiment #2. Does the solute matter?  OK, so a substance is soluble.  Does the amount of solute that will dissolve in a given amount of water depend on what you are dissolving? (IE. Will the amount of salt that dissolves in a given amount of water be the same as the amount of sugar that can be dissolved?) (20-26 pts)

Procedure:

1. Write an Introduction that defines solute, solvent, and solute and explains what happens when ionic and covalent compounds dissolve. Also identify you dependent and independent variables in your experiment.

2. Design an experiment to test the above question.  Try using sugar, salt, and 2 other soluble compounds of your choice.

3. Report your procedure, data, and conclusions. If there is a difference, use your research and data to try to speculate on what might cause a difference in how much of a substance will dissolve.

4. Make a graph / table / chart to show your results

5. Include a works cited page with internal citations (following MLA Style)