Experiment 7
Enthalpy of Solution

The water left in the calorimeter after the calibration (Section A) may be disposed of down the drain. The salt solutions (CaCl₂ and NH₄NO₃) left in the calorimeter in Part II are to be collected in the waste container at the side bench. The instructors will measure and record the volume in a "Sewer Waste Discharge Log" before flushing the waste down the drain.

CLEAN-UP

Dispose of your solutions as described in the Waste Disposal section. Your computer equipment, temperature probe, calorimeter, cardboard lid, thermometer(s), magnetic stirrer, stir bar, and small utility clamp should be left on the bench top for the next class to use.