Chemistry (7th Edition)

Published by Pearson
ISBN 10: 0321943171
ISBN 13: 978-0-32194-317-0

Chapter 3 - Mass Relationships in Chemical Reactions - Worked Example - Page 83: 6

Answer

Molar mass: 342.30 g/mol Molecular weight: 342.30 $u$

Work Step by Step

Count the number of each type of atom: 12 gray spheres: 12 carbons. 11 red spheres: 11 oxygens. 22 ivory spheres: 22 hydrogens. Molar Mass ($C_{12}O_{11}H_{22}$): 12.01* 12 + 16.00* 11 + 1.008* 22 = 342.30 g/mol The molecular weight has the same value with the different units of mass (u).
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