Name: Period: Date: Scientific Notation Worksheet 1. Why are measurements used in chemistry often expressed in scientific notation?
2. Are these numbers in correct scientific notation form? (C = correct / I = incorrect) If
incorrect, explain what is wrong.
(a) 72 x 104
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(b) 0.6 x 10-12
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(c) 1.7 x 26
____
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(d) 962 x 10-5
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(e) 9.7986288 x 101
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3. Indicate whether the power of 10 is positive or negative (P = positive / N = negative) when
each of the following is written in scientific notation. Give reasons
(a) 46,000 m
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(b) 0.0093 g
____
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(c) 163 mL
____
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4. Write the following numbers in scientific notation:
(a) 840.67
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(b) 93,100,000
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(c) 300,500,000
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(d) 1,842,000,000,000,000
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5. Write the following numbers in scientific notation:
(a) 0.00009723
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(b) 0.00000002012
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(c) 0.000000000065789
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(d) 0.0000000000000000000097631 _________________________________________
6. Write the following as standard numbers:
(a) 7.2 x 10-3 m
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(b) 2.4 x 105 g
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(c) 8.25 x 10-2s
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Chemistry 2014/Measurement/Scientific Notation Worksheet Name: Period: Date: 7. Solve each problem and express your answer in scientific notation
(a) (9.3 x 107) x (2.34 x 102)
(b) (5.932 x 10-6) x (8.63 x 10-3)
8. Solve each problem and express your answer in scientific notation
(a) (6.53 x 10-3)2
(b) 5.932 x 10-6
8.63 x 10-3
9. Solve each problem and express your answer in scientific notation
(a) (6.843 x 10-3) x (2.540 x 104)
(b)
5. 324 x 107
3.406 x 102
(2.135 x 10-4) (4.562 x 1013)
10. Solve each problem and express your answer in scientific notation.
(a) 9.3 x 107 + 6.7062 x 105
(b) 8.205 x 102 + 3.4067 x 10-1
11. Solve each problem and express your answer in scientific notation.
(a) 9.3 x 107 - 6.7062 x 105
(b) 6.7062 x 10-2 - 3.4067 x 10-1
Chemistry 2014/Measurement/Scientific Notation Worksheet