For the dissolving of solid KNO3 in water: 2. Once your KNO3 is fully dissolved,

Question

For the dissolving of solid KNO3 in water: 2. Once your KNO3 is fully dissolved, will the actual concentration of your solution be somewhat higher or somewhat lower than the concentration you calculate? Explain. 3. If more potassium nitrate dissolves in hot water than in cold water, does the solubility product, Ksp, of potassium nitrate increase, decrease, or stay the same with increasing temperature? Explain. 4. If Ksp increases with increasing temperature, is the reaction endothermic, exothermic, or energetically neutral? Explain. (Think Le Châtelier!)

Explanation / Answer

2) As the volume of solution increases, concentration of KNO3 decreases than the original because concentration is inversely proportional to volume of solution

3) As temparature of solution increases, the solubility of solids in liquids increases, as solubility increases more amount of ions are available so that Ksp also increases, Ksp is constant at constant temparature.

4) Ksp value increases with increase in temparature so that it is endothermic reaction

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