SOLUTIONS TO EXERCISES, LESSON 2
1. b
2. a
d
3. b, c, e
4. d
5. c
6. c
8. d
10. b
(para 2-9) (Mixing a formulation too weak is equally, if not more, undesirable.
If a formulation is too weak, the program may be a failure and require a repeat
application and thereby increase the exposure to nontarget species.)
11. c
AXSXD
16 lb X 0.05 X 1
Q = -------------- = ------------------ = 1 lb
C
0.80
12. b
Amt toxicant = A X S = 16 lb X 5% = 0.8 lb, or
Amt toxicant = Q X C = 1 lb X 80% = 0.8 lb
13. a
AXSXD
100 gal X 0.02 X 1
Q = -------------- = -------------------- = 2.778 gallons (rounds to 2.8)
C
0.72
14. c
Amt toxicant = A X S = 100 gal X 2% = 2 gallons, or
Amt toxicant = Q X S = 2.8 gal X 72% = 2.016 gallons (rounds to 2)
MD0173
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