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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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A rubber stopper weighing 8.554 g displaces 7.0 mL of water in a graduated cylinder. Refer to Example Excercise 2 and calculate the density of the solid rubber stopper.

Transcribed Image Text:Example Exercise 2 Density of a Rubber Stopper
A rubber stopper weighing 8.453 g displaces 6.5 mL of water in a graduated cylinder
(Figure 2). What is the density of the rubber stopper?
Solution: Dividing the mass of the rubber stopper by its volume, we have
8.453 g
1.3 g/mL
6.5 mL
In this example, the volume has only two digits. Thus, the density is limited
to two significant digits.
We will also determine the density of a solid. The volume of any solid object with
regular dimensions can be found by calculation. For example, the volume of a rectangular solid
object is calculated by multiplying its length times its width times its thickness.
BRUCE
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