1. Conductivity of Different Salt Solutions
By: Jennifer Stall
Amanda Leonard
Jason Toon
Marina Korolis
Kris Mason
Dan Pellegrini

2. Our Goals for this Experiment
Explore the property of conductivity of solutions
Formulating hypotheses, predicting relationships and gathering data
Use mathematics to interpret graphical data
Discover the role mathematics plays in the scientific process

3. Procedure
First, we prepared 1M solutions of potassium chloride and magnesium nitrate.
We made a prediction about the conductivity of each solution
We started with a beaker -full of water, and measured the conductivity with each progressive drop
Finally, we analyzed our data

4. How to combine Math and Chemistry
Since we made graphs of conductivity vs. volume, and we found the relationship to be linear, students can easily find the slope, x- and y- intercepts, and equation of the best-fit line
We can describe a mathematical relationship between the conductivity and the number of ions in solution

5. What we would do differently next time
We discovered afterwards that using two different anions introduced another variable which invalidated our hypothesis
We should use solutions that contain the same anion but different cations (i.e. sodium chloride, calcium chloride, aluminum chloride)
For more information, refer to this lesson