C.2 #1-3 p.56/ 1SCS #1-8 pg. 82

1. a) 105 grams
    b) 47 grams

2. a) 20 grams
    b) 20 grams

3. a) 90 grams
    b) 200 grams of water would have to be added



1. Three teaspoons of sugar will completely dissolve in a serving of hot tea, but will not dissolve in an equally sized serving of iced tea because because of the difference in mixtures. The hot water has a bigger gap for the molecules, allowing more space for the sugar molecules to fit in between.

2. The maximum mass of potassium chloride that will dissolve in 100.0 g water at 70 degrees c is 48 grams.

3. a. 100.0 mL water

4. 80 degrees C then 20 degrees C.

5. Saturated means that there is so much of a substance that you cannot dissolve anymore of it. An unsaturated solution is a solution that contains less dissolved solute than the amount that the solvent can normally hold at that temperature.

6a. 80g

6b. Supersaturated

6c. 35g

7a. Crystals will dissolve

7b. Crystals will not dissolve.

7c. Crystals will dissolve and sink to the bottom of the mixture.

8. 30%