General Chemistry 10th Edition

Published by Cengage Learning
ISBN 10: 1-28505-137-8
ISBN 13: 978-1-28505-137-6

Chapter 3 - Calculations with Chemical Formulas and Equations - Questions and Problems - Page 120: 3.52

Answer

Mass percentage of sulfur in the sample of ethyl mercaptan is 46.6 %.

Work Step by Step

Mass percentage of sulfur in the sample of ethyl mercaptan= $\frac{m(sulfur )}{m(ethyl mercaptan)}$ $\times$ 100% Mass percentage of sulfur in the sample of ethyl mercaptan = $\frac{1.64 mg (sulfur )}{3.52 mg(ethyl mercaptan)}$ $\times$ 100% Mass percentage of sulfur in the sample of ethyl mercaptan = 0.4659 $\times$ 100% Mass percentage of sulfur in the sample of ethyl mercaptan is 46.59 % or 46.6 % ( to three significant figures).
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