Chemistry: Principles and Practice
3rd Edition
ISBN: 9780534420123
Author: Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher: Cengage Learning
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Textbook Question
Chapter 1, Problem 1.44QE
A measurement’s true value is 17.3 g. For each set of measurements, characterize the set as accurate, precise, both, or neither.
- (a) 17.2, 17.2, 17.3, 17.3 g
- (b) 16.9, 17.3, 17.5, 17.9 g
- (c) 16.9, 17.2, 17.9, 18.8 g
- (d) 17.8, 17.8, 17.9, 18.0 g
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2. Perform the indicated operations and give answers in the indicated unit and with the proper number of significant
figures.
(a)
113.137g-2.047 g
50.0 mL-37.40 mL
(in g/mL)
(b) 25.50 g +462 mg + 0.0100 kg (in g)
(c) 0.900 mm * 0.8750 cm * 0.0031489 m (in cm³)
21. Solve the following problems, stating answers to the
proper number of significant figures:
(a) 12.62 +1.5 +0.25 = ?
(b) (2.25 x 10³) (4.80 x 10) = ?
(452)(6.2)
(c)
14.3
(d) (0.0394)(12.8) = ?
0.4278
(e)
59.6
(f) 10.4 +3.75(1.5 × 10) = ?
S
?
= ?
Q9. I am unsure on how to get the final answer. I believe we have to convert the number to scientific notation but I’m not sure how they got that answer.
Chapter 1 Solutions
Chemistry: Principles and Practice
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