Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 3 Chemical Reactions - 3-9 Classifying Reactions in Aqueous Solution - Applying Chemical Principles - Questions: 5

Answer

$0.01045\ g$

Work Step by Step

Molecular weight of $YBa_2Cu_3O_{6.5}$: $658.19\ g/mol$ Molecular weight of $YBa_2Cu_3O_{6.93}$: $665.07\ g/mol$ In 1.00 g of the first compound: $1.00/658.19=0.00152\ mol$ This number of moles corresponds to: $0.00152\ mol\times665.07\ g/mol=1.01045\ g$ of the second compound. The difference is the mass of oxygen added: $0.01045\ g$
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