Chemistry: The Molecular Science (5th Edition)

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

Chapter 2 - Chemical Compounds - Questions for Review and Thought - Topical Questions: 78a

Answer

42 Pennies

Work Step by Step

We know that 1 penny contains 2.4% of the desired weight of copper, so: $$ \frac {1}{.024}=42 \ Pennies$$
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