Chemistry: The Molecular Science (5th Edition)

Published by Cengage Learning
ISBN 10: 1285199049
ISBN 13: 978-1-28519-904-7

Chapter 1 - The Nature of Chemistry - Questions for Review and Thought - Topical Questions - Page 41b: 25



Work Step by Step

The volume of the metal is (1.0cm)(2.0cm)(10.0cm) = 20.0cm$^3$. Density is mass divided by volume. The density of the metal is (54.0g)/(20.0cm$^3$) = 2.70 g/cm$^3$ = 2.70 g/mL. According to Table 1.1, Aluminium has a density of 2.70 g/mL. Therefore, the unknown metal must be aluminium. (Any pure substance of a metal will always have the same density, regardless of the size.)
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