Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 2 Atoms, Molecules, and Ions - 2-9 Atoms, Molecules, and the Mole - Review & Check for Section 2-9 - Page 84: 5



Work Step by Step

Molar mass of $O_2: 31.998\ g/mol$, Avogadro's number: $6.022\times10^{23}\ molecules/mol$ In 16 g of $O_2$: $16\ g\div31.998\ g/mol\times6.022\times10^{23}\ molecules/mol=3.011\times10^{23} molecules$ 2 atoms of O/molecule of $O_2$ $6.022\times10^{23}\ atoms$ of O.
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