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Published byAshlyn Tate Modified over 9 years ago
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Solubility curves
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Solubility Curves solubility of a solute changes with temperature solubility of each compound is different at different temperatures solubility of each compound changes in a different way as temperature changes
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UNSATURATED, SATURATED AND SUPERSATURATED SOLUTIONS 1.UNSATURATED SOLUTION more solute can be dissolved while the temperature remains constant *any point in the region under the solute ’ s solubility curve 2. SATURATED SOLUTION no more solute can be dissolved into the solution at a fixed temperature * any point ON the solubility curve 3. SUPERSATURATED SOLUTION solution containing more dissolved solute than normal at a particular temperature unstable may suddenly form solid crystals leaving only a saturated solution behind * any point ABOVE the solubility curve
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Calculations using solubility curves Using The Graph On the Previous Slide 1. Is the solution saturated, unsaturated or supersaturated if there are 20g of KClO 3 at 30°C 2. Is the solution saturated, unsaturated or supersaturated if there are 5g of KClO 3 at 50°C 3. Is the solution saturated, unsaturated or supersaturated if there are 20g of KClO 3 at 50°C 4. 100 g H 2 O is saturated with KClO 3 at 100°C. How much KClO 3 will come out of solution if the temperature is decreased to 48°C? 57 g-18 g = 39 g Saturated Unsaturated Supersaturated
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