Solubility & Temperature - GIZMO with all ANSWERS CORRECT

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Student Exploration: Solubility and Temperature Vocabulary: concentration, dissolve, homogeneous mixture, solubility, solubility curve, solute, solution, solvent Prior Knowledge Questions (Do these... BEFORE using the Gizmo.) 1. What happens when you stir a spoonful of sugar into hot water? ______________________ _________________________________________________________________________ 2. When sugar or another substance is dissolved in water, it disappears from view and forms a homogeneous mixture with the water, also called a solution. If you can’t see the sugar, how can you tell that it is there? __________________________ _________________________________________________________________________ 3. Does sugar dissolve more easily in hot water or cold water? _________________________ Gizmo Warm-up A solution generally consists of two parts, a solute that is dissolved and a solvent that the solute is dissolved into. For example, sugar is a solute that is dissolved into the solvent water. In the Solubility and Temperature Gizmo, you will study how temperature affects how much solute will dissolve in a solution. To begin, check that Potassium nitrate is selected and the Temp. of the water is 20 °C. Click OK. 1. In this solution, what is the solute? ________________ What is the solvent? ___________ 2. Click Add 10 g to mix 10 g of potassium nitrate into the water. A. Did all of the potassium nitrate dissolve? ___________ B. How can you tell? ____________________________________________________ ___________________________________________________________________ you can know by taste or boil the water then you can see the substence sugar melts in water hot water potassium nitrate water all potassium nitrate melted in the water [Show More]

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