Chemistry and Chemical Reactivity (9th Edition)

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

Chapter 4 Stoichiometry: Quantitative Information about Chemical Reactions - Study Questions - Page 179j: 117


See answer below.

Work Step by Step

a) $Au$ has been oxidized, since its oxidation number increases from 0 to +1, thus it's the reducing agent. $O_2$ has been reduced, since its oxidation number decreases from 0 to -1, thus it's the oxidizing agent. b) Number of moles of gold: $10^6\ g\times 0.019/100\div 196.97\ g/mol=0.9646\ mol$ From stoichiometry: $1.929\ mol$ NaCN Volume: $1.929\ mol\div 0.075\ M=25.72\ L$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.