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What is KNO3 Solubility vs. Temperature Lab about?

This experiment investigates the relationship between the solubility of potassium nitrate (KNO3) and temperature. Students measure the temperature at which given masses of KNO3 (40, 70, 90, 120, 160 g/100g water) crystallize out of solution. They repeat this for 5 trials and average the temperatures. The class data is reported and graphed to show the solubility curve, which generally shows solubility increasing with temperature except for exceptions like gases.

Author

api-351291690

Language

EN