Chemistry 9th Edition

Published by Cengage Learning
ISBN 10: 1133611095
ISBN 13: 978-1-13361-109-7

Chapter 3 - Stoichiometry - Review Questions: 6

Answer

The empirical formula gives the most reduced ratio of the elements in a compound, and the molecular formula gives the actual number of elements in a compound. The empirical formula and the molecular formula can be the same if the ratio of the actual number of elements in that compound is a reduced fraction. For example, the molecular and empirical formulas of water are both $H_2O$.

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