The Tools Of Chemistry Worksheets With Answer Key Page 9
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9Chapter 1 — Tools of Chemistry
Page 9
3
1-50. Aluminum has a density of 2.699 g/cm
. If you have a block of aluminum with a mass of
434 pounds, how many meters of wire can be made from this block if the wire has a
2
diameter of 2.5 mm? (The volume of the wire is given by π • r
• l where l is the length of
the wire and r is its radius. There are 453.6 g per pound.)
(a)
8.2 meters
(b)
37 meters
2
4
(c)
9.3 x 10
meters
(d)
1.5 x 10
meters
ANSWERS — CHAPTER 1
1.
a
11.
c
21.
d
2.
d
12.
d
22.
c
3.
c
13.
b
23.
d
4.
d
14.
a
24.
b
5.
b
15.
b
25.
c
6.
c
16.
d
26.
a
7.
a
17.
c
27.
d
8.
b
18.
a
28.
c
9.
d
19.
b
29.
a
10.
a
20.
c
30.
d
31.
b
41.
c
32.
a
42.
c
33.
a
43.
b
34.
b
44.
a
35.
a
45.
b
36.
c
46.
b
37.
b
47.
b
38.
c
48.
c
39.
b
49.
a
40.
a
50.
d
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