PASCO CI-6729 (1X) CONDUCTIVITY SENSOR - Manual (Page 16)

12
Conductivity Sensor 012–06485B
15.0 grams of citric acid have been added. In the Keyboard Input box continue to type the
total mass of citric acid added to the solution for each increment. Note that as more acid is
added to the solution, additional time will be needed to dissolve the crystals.
10. When the 15.0 grams have been added increase the increments to 5.0 grams. Click Stop
Sampling after 60 grams of citric acid have been added to the solution.
11. Remove the electrode and rinse it with the wash bottle.
Questions
1. Describe your results.
2. Explain the behavior of the conductivity vs. mass graph at high concentrations.