Homework Blog 8

C.2 #1-3 p.56

1.
a. 105 grams
b. 45 grams

2.
a. 10 grams
b. 20 grams

3.
a. 87.5 g KNO3
b. At least 80 g

ISCS #1-8 p.52

1. Because higher temperatures dissolve the solutes more easily.

2. 50 grams (look at the chart on page 54)

3.
a. 200 grams
b. 710 grams
c. 1,892

4.
a. 20- KNO3, NaCl, KCl
b. 80- KNO3, KCl, NaCl

5. Saturated - when there is too much chemical for the water. Unsaturated - contains less dissolved substance than it can hold.

6.
a. 30 grams
b. Supersaturated
c. 35 grams

7.
a. The crystals will dissolve into the unsaturated solution.
b. The crystals will remain undissolved at the bottom of the saturated solution.
c. Solid crystals will form and will settle to the bottom of the supersaturated solution.


8. 52.5% - 1.5 x 35g = 52.5%