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Practice Set: Solution Saturation
Part A. Identify the following statement as unsaturated, saturated, or supersaturated. In the blank beside of each, write U for unsaturated, S for saturated, or SS for supersaturated.
____1. The surface of the solution is agitate and the solute precipitates.
____2. A small amount o solute in a large amount of solvent.
____3. The solution is first heated, more solute added, then the solution is cooled.
____4. Gas escapes from the liquid when a bottle is opened.
____5. Solute is added to a solvent at room temperature until only a little remains undissolved.
Part B. Each of the following statements describes one step in the preparation of a supersaturated solution. Sequence the following steps 1-4.
1._____ a) Allow solution to cool
2._____ b) Heat the solution
3._____ c) Add solute to the solvent until it becomes saturated
4_____ d) As the solution gets hotter add more solute
Part C. Fill in the blanks using the following terms: saturated, unsaturated, and supersaturated.
A few crystals of solute are added to a solution. They immediately dissolve. This indicates that the solution is ___________. A few more crystals are added, and they do not dissolve. The solution is now _____________. A few crystals are added to a different solution and they cause a large amount of solute to come out of the solution and form crystals. This solution is _____________.
Practice Set: Solubility
Part A. In the blank preceding each statement write an I to indicate an increase in solubility or a D to indicate a decrease in solubility.
_____1. Oxygen in water - temperature drops
_____2. Salt in water – temperature drops
_____3. Sugar in water – temperature rises
_____4. Nitrogen in blood as diver descends
_____5. CO2 in a soft drink – cap is removed
_____6. Tea in water – water is heated
_____7. Nitrogen in blood as diver ascends
_____8. Sun shines on an aquarium and warms water with dissolved oxygen.
Part B. Place an X in the blank beside each of the following statements that will increase the solubility of sugar in water.
_____1. Heating the solution
_____2. Cooling the solution
_____3. Stirring the solution
_____4. Removing energy from the solution
_____5. Crushing the sugar
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