Chemistry: The Central Science (13th Edition)

by Brown, Theodore E.; LeMay, H. Eugene; Bursten, Bruce E.; Murphy, Catherine; Woodward, Patrick; Stoltzfus, Matthew E.

Published by Prentice Hall

ISBN 10: 0321910419

ISBN 13: 978-0-32191-041-7

Chapter 3 - Chemical Reactions and Reaction Stoichiometry - Exercises - Page 114: 3.24d

Answer

60 amu

Work Step by Step

In 1 molecule of urea there are: 2 atoms of nitrogen- 14 amu each 4 atoms of hydrogen- 1 amu each 1 atom of carbon- 12 amu each 1 atom of oxygen- 16 amu each When the number of atoms are multiplied by their atomic weights and added together the final mass of 1 molecule of urea is 60 amu.

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