Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

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


The formula weight for magnesium hydroxide is 58.3 grams/mol.

Work Step by Step

In every mole of Magnesium Hydroxide there is: 1 mol of Magnesium ions 2 mol of Oxygen ions 2 mol of Hydrogen ions These quantites must be multiplied by their weights per mole and then added to yield there formula weight 1 mol of Magnesium ions X 24.3 gram/mol = 24.3 grams of Mg 2 mol of Oxygen ions X 16 grams/mol = 32.0 grams of O 2 mol of Hydrogen ions X 1 gram/mol = 2.0 grams of H Your result when these values are added up is 58.3 grams/mol of magnesium hydroxide
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