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 - Study Questions: 115

Answer

There's more mass in $3.0\times10^{23}$ molecules of adenine than in 40.0 g.

Work Step by Step

Molecular formula of adenine: $C_5N_5H_5$ Molar mass $135.13\ g/mol$ $3.0\times10^{23}\ molecule \div(6.022\times10^{23}\ molecule/mol)\times135.15\ g/mol=67\ g$
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