Chemistry: The Central Science (13th Edition)

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

Chapter 22 - Chemistry of the Nonmetals - Exercises - Page 993: 22.71d


$Na_{2}B_{4}O_{7}.10H_{2}O$, Oxidation state of B is +3

Work Step by Step

Net oxidation state of the compound is 0, hence: Na: +1 x 2 = +2, O: -2 x 7 = -14, hence B should have oxidation state of +3 (+3 x 4= +12).
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