Name: Section: Solubility of Unknown Salts Date: Pre-Lab Questions 1. What is th

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Name: Section: Solubility of Unknown Salts Date: Pre-Lab Questions 1. What is the difference between a saturated solution and an unsaturated solution? 2. Briefly explain how the solubility of most salts is related to temperature. What general trend is observed, and why? 3. What factors determine the solubility of a salt in water? Explain. 4. A student collected the following temperature-solubility data for ammonium chloride (NH,CI) dissolved in water: Mass of salt sample: 2.33 g Total Volume of water added 3.00 3.58 4.24 4.66 5.68 6.13 7.06 7.77 Solubility (g salt/ 100 mL H2O) 77.7 Saturation Temperature, °C 98.0 80.0 61.0 51.0 30.0 22.0 10.0 1.0 (a) Calculate the solubility of NH CI for each saturation temperature and enter the values in the table above (b) Prepare a solubility-temperature curve for NH.Cl using Excel. (c) From your curve, estimate the solubility of NH.cl at 40 °C. 15

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Name: Section: Solubility of Unknown Salts Date: Pre-Lab Questions 1. What is th

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