The Solvent Properties of Water Exploration

Purpose Question:

What is the effect of a mixture's bonds and/or polarity on its ability to dissolve (solubility) in water?

Hypothesis:

Variables:

Drawing of Setup:

Data Table:

Analysis Questions:

1. Determine the differences in electronegativities, draw the structural formulas for all the substances, and determine if the bonds are ionic, polar covalent or nonpolar covalent.

2. Polar and ionic substances generally dissolve in water, nonpolar substances do not. Explain.

3. Based on the fact that calcium carbonate is an ionic compound, you may be puzzled by your experimental results for this compound. Propose an explanation for the solubility of calcium carbonate.

4. What basis can you use to decide whether the liquids tested are polar or nonpolar? Which of the liquids tested are polar? Which are nonpolar?

Conclusion:

In a paragraph, discuss what happened in the experiment. Explain whether the results supported your hypothesis or not. Discuss errors that could have affected your results. Explain a real world application of the concepts you learned and create a new questions you would like to explore now.