Solubility Notes Solubility and Solubility Curves 1 Solubility
![Solubility Notes Solubility and Solubility Curves 1 Solubility Notes Solubility and Solubility Curves 1](https://slidetodoc.com/presentation_image_h2/154be25895b9913c1f7796e270e44b91/image-1.jpg)
Solubility Notes Solubility and Solubility Curves 1
![Solubility The solubility of a substance is determined by the mass of solute needed Solubility The solubility of a substance is determined by the mass of solute needed](http://slidetodoc.com/presentation_image_h2/154be25895b9913c1f7796e270e44b91/image-2.jpg)
Solubility The solubility of a substance is determined by the mass of solute needed to make a saturated solution in 100 g (100 ml) of water at a certain temperature. Saturated – The total amount (mass) of solute that can be dissolved into solution at a certain temperature All points on the “solubility curve” Also known as the solution equilibrium line 2
![Solubility Unsaturated: any point below the “solubility curve” of a substance at a certain Solubility Unsaturated: any point below the “solubility curve” of a substance at a certain](http://slidetodoc.com/presentation_image_h2/154be25895b9913c1f7796e270e44b91/image-3.jpg)
Solubility Unsaturated: any point below the “solubility curve” of a substance at a certain temperature. Therefore, more solute can dissolve Supersaturated: any point above the “solubility curve” of a substance at a certain temperature Saturated: any point on the “solubility curve” 3
![Solubility Chart The amount in grams is plotted on a graph based on the Solubility Chart The amount in grams is plotted on a graph based on the](http://slidetodoc.com/presentation_image_h2/154be25895b9913c1f7796e270e44b91/image-4.jpg)
Solubility Chart The amount in grams is plotted on a graph based on the temperature. The maximum amount of a solute dissolved in 100 g of water is tested at four different temperatures. Temp (°C) Dissolved Solute (g) 0 23. 1 20 32. 0 60 61. 8 100 114. 0 4
![Solubility Chart Then the data points are connected by a line or curve. The Solubility Chart Then the data points are connected by a line or curve. The](http://slidetodoc.com/presentation_image_h2/154be25895b9913c1f7796e270e44b91/image-5.jpg)
Solubility Chart Then the data points are connected by a line or curve. The curve represents the maximum amount of a solute dissolved in 100 g of water for ALL temperatures between 0°C and 100°C. Q: Why is the scale only between 0°C and 100°C? A: Solutes dissolve in LIQUID water 5
![Solubility Curve At 40°C, 100 g of water can dissolve how much solute? Saturation Solubility Curve At 40°C, 100 g of water can dissolve how much solute? Saturation](http://slidetodoc.com/presentation_image_h2/154be25895b9913c1f7796e270e44b91/image-6.jpg)
Solubility Curve At 40°C, 100 g of water can dissolve how much solute? Saturation at 40°C with 45 grams of solute 6
![Solubility Curve Will 50 grams dissolve in 100 g of water at 75°C? Yes, Solubility Curve Will 50 grams dissolve in 100 g of water at 75°C? Yes,](http://slidetodoc.com/presentation_image_h2/154be25895b9913c1f7796e270e44b91/image-7.jpg)
Solubility Curve Will 50 grams dissolve in 100 g of water at 75°C? Yes, it can. Will the solution be saturated, unsaturated, or supersaturated with 50 grams at 75°C? For any point below the solubility curve the solution is UNSATURATED 7
![Solubility Curve For any point above the solubility curve the solution is SUPERSATURATED Is Solubility Curve For any point above the solubility curve the solution is SUPERSATURATED Is](http://slidetodoc.com/presentation_image_h2/154be25895b9913c1f7796e270e44b91/image-8.jpg)
Solubility Curve For any point above the solubility curve the solution is SUPERSATURATED Is a solution with 70 g of solute dissolved at 40°C saturated, unsaturated, or supersaturated? 8
![Solubility Questions 1. At 60°C, 38 g of solute is dissolved in 100 g Solubility Questions 1. At 60°C, 38 g of solute is dissolved in 100 g](http://slidetodoc.com/presentation_image_h2/154be25895b9913c1f7796e270e44b91/image-9.jpg)
Solubility Questions 1. At 60°C, 38 g of solute is dissolved in 100 g of water. What is the name of the solute? 2. If 50 g of KCl are dissolved in 100 g of water, at 80°C, is the solution saturated, unsaturated, supersaturated? 3. What is the solubility of KNO 3 at 45°C in 200 g of water? 4. What is the solubility of KCl at 80°C in 150 g of water? 9
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