Department of Chemistry and Physics |
Answers - Worksheet 1 |
Scientific Notation/Significant
Figures
|
1. Convert each of the following into scientific notation.
a) 3.427 x 103 | b) 4.56 x 10-3 | c) 1.23453 x 105 |
d) 1.72 x 102 | e) 9.84 x 10-4 | f) 5.02 x 10-1 |
g) 3.1000 x 105 | h) 1.14 x 102 | i) 1.072 x 102 |
j) 4.55 x 10-5 | k) 2.2052 x 103 | l) 3.00 x 10-1 |
m) 9.82 x 10-4 | n) 4.73 x 10-2 | o) 6.50502 x 102 |
p) 3.03 x 10-1 | q) 2.04 x 106 | r) 1.29 x 100 = 1.29 |
s) 5.65 x 10-3 | t) 1.3622052 x 106 | u) 4.500 x 105 |
v) 1.000 x 100 = 1.000 |
2. Determine the number of significant figures in each of the following:
a) 4 | b) 3 | c) 6 |
d) 3 | e) 3 | f) 3 |
g) 5 | h) 3 | i) 4 |
j) 3 | k) 5 | l) 3 |
m) 3 | n) 3 | o) 6 |
p) 3 | q) 3 | r) 3 |
s) 3 | t) 8 | u) 4 |
v) 4 | w) 5 | x) 3 |
3. Convert each into decimal form.
15600 + 100 | 0.0056 | 0.0369 | 73690000 + 10000 |
259 | 0.0000459 | 0.1369 | 69000 + 1000 |
2.59 | 0.0000209 |
4. Calculate the following. Give the answer in correct scientific
notation.
a) 2.7 x 106 | b) -2.7 x 103 |
c) 2.53 x 1024 | d) 1.47 x 103 |
e) 2.2 x 106 | f) -3.5 x 102 |
g) 5.34 x 10-44 | h) -1.2 x 10-2 |
5. Calculate the following. Give the answer in correct scientific
notation.
a) 2.63 x 10-4 | b) 2.3 x 1013 |
c) 1.97 x 102 | d) 1.65 x 10-23 |
e) 2.5 x 10-83 | f) 1.6 x 1014 |
g) 2.000 x 1079 | h) 2.37 x 10-7 |