Solutions: Concentration and Solubility

Which item is not an example of a solution?
1. Cornmeal
2. A brass button
3. Root beer
4. Rubber cement
A solid solution is called
1. an alloy.
2. a mechanical mixture.
3. a universal solvent.
4. a solute.
Dish detergent is used to clean dirty dishes.

Dish detergent is effective because
1. it can dissolve oils and fats.
2. it is a universal solvent.
3. it makes fats and oils dissolve in water.
4. it turns fats and oils into alloys.
A solution can be
1. gas.
2. mechanical.
3. insoluble.
4. a solute.
To form a solution, the solute
1. must be attracted to the solvent.
2. must dissolve the solvent.
3. must concentrate the solvent.
4. must be heated in the solvent.
Imagine that you have just purchased a beautiful old oak table at a rummage sale.

It has a wax finish you would like to remove so you apply a layer of turpentine and begin to rub. The waxy layer begins to dissolve. In this case what substance is the solute?
1. Wax
2. Turpentine
3. Oak
4. Air
A baker would like to use gelatin granules to thicken her chocolate mousse. First she adds the granules to some cold water and stirs the mixture but they do not dissolve. What could she do to dissolve her gelatin into a solution?
1. Heat the mixture
2. Place the mixture in the freezer
3. Stop agitating the mixture and let it rest
4. Add sugar to the mixture
A baker would like to use gelatin granules to thicken her chocolate mousse. She adds the granules to some cold water and stirs the mixture but they do not dissolve. This mixture is an example of
1. a mechanical mixture.
2. a dilute solution.
3. a supersaturated solution.
4. a homogenous mixture.
A bar tender is creating a syrup concentrate with sugar and water from which he will make cocktail drinks later in the evening. First he mixes sugar and hot water together and stirs vigorously. The sugar disappears completely. He continues to add sugar and stir until it no longer dissolves but instead sinks to the bottom of the container, no matter how much he stirs. The bartender has created
1. a saturated solution.
2. a dilute solution.
3. a supersaturated solution.
4. an unsaturated solution.
What is the concentration of a solution in which 15 grams of sugar is dissolved in 200 mL of water?
1. 75 g/L
2. 15 g/L
3. 300 g/L
4. 3000 g/L

Solutions: Concentration and Solubility - Section 8.1 Quiz