Chemistry: Principles and Practice (3rd Edition)

Published by Cengage Learning
ISBN 10: 0534420125
ISBN 13: 978-0-53442-012-3

Chapter 3 - Equations, the Mole, and Chemical Formulas - Questions and Exercises - Exercises - Page 133: 3.52

Answer

To calculate the number of atoms, molar mass is multiplied with Avogadro's number (a): 0.0778 x 6.022 x $10^{23}$ = 4.69 x $10^{22}$ atoms (b): 1.44 x 6.022 x $10^{23}$ = 8.73 x $10^{23}$ atoms (c): 55.8 x x 6.022 x $10^{23}$ = 3.36 x $10^{24}$ atoms

Work Step by Step

To calculate the number of atoms, molar mass is multiplied with Avogadro's number: (a): 0.0778 x 6.022 x $10^{23}$ = 4.69 x $10^{22}$ atoms (b): 1.44 x 6.022 x $10^{23}$ = 8.73 x $10^{23}$ atoms (c): 55.8 x x 6.022 x $10^{23}$ = 3.36 x $10^{24}$ atoms
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