General Chemistry (4th Edition)

Published by University Science Books
ISBN 10: 1891389602
ISBN 13: 978-1-89138-960-3

Chapter 2 Atoms and Molecules - Problems - Page 72: 15

Answer

Mass percentages of copper = 80% Mass percentages of Sulphur = 20%

Work Step by Step

Mass percentages of copper = Mass of Copper / Mass of Copper Sulphide x 100 Mass percentages of Sulphur = Mass of Sulphur / Mass of Copper Sulphide x 100
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