ll with tap water. It was placed on the hot plate at the base of the ring stand and the water heated to about 90oC, and the heat adjusted to maintain the water at this temperature. The Temperature Probe was placed in the water bath to monitor the temperature and warm the probe. The Temperature probe wire was hung over another utility clamp facing the opposite way to protect it from damage.
9. A utility clamp was used to fasten one of the test tubes to the ring stand and the test tube was lowered into the water. For tubes 3 and 4, a stirring rod was used as a higher temperature was needed to dissolve the contents of these tubes. The test tubes were each left in the water until the solute was completely dissolved.
10. When the KNO3 was completely dissolved, START was pressed on the main screen. The Temperature Probe was removed from the water bath, wiped dry, and placed into the sol
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