Homework #8 Semester 1

1-3 on pg. 56

1. A. 106 grams
    B. 45 grams

2. A. 45 grams
    B. 20 grams

3. A. 75 grams
    B. 90 grams

1-8 on pg. 82

1. Sugar cubes dissolve in tea (tea being the solvent and sugar the solute). The reason it dissolves completely in hot tea instead of iced tea is because the sugar dissolves faster in the hot tea and slower in the iced tea (the molecules move slower).
- The differences in temps can effect the solubility.

2. 48 grams.

3. A. 50 200g
    B. 177.5 710g
    C. 473 1892g

4. A. Least soluble: potassium nitrate
         Most soluble: potassium chloride
- NaCl, KCl, KNO3
    B. Least soluble: potassium chloride
         Most soluble: potassium nitrate
- KNO3, KCl, NaCl

5. Saturated is when something can be soaked thoroughly while unsaturated is a solution contains less dissolved solute than the amount that the solvent can normally hold at that temperature.

6. A. 32
    B. Supersaturated saturated
    C. 70 90g

7. A. nothing the crystals will dissolve
    B. precipitate a little the crystal will form at the bottom
    C. precipitate a lot the crystal will will add to the precipitate at the bottom

8. 23%