Chemistry 12th Edition

Published by McGraw-Hill Education
ISBN 10: 0078021510
ISBN 13: 978-0-07802-151-0

Chapter 1 - Chemistry: The Study of Change - Questions & Problems - Page 33: 1.76


39.88 kg, 87.92 lbs

Work Step by Step

Osmium Sphere Density: 22.57 g/cm3 Diameter: 15cm Volume:? Volume of Sphere = $\frac{4πr^3}{3}$ = $\frac{(4)(7.5^3)π}{3} cm^3$ Mass= Density x Volume = $\frac{(22.57)(4)(7.5^3)π}{3}$ $\approx39884.48223$ g $\approx39.88448223$ kg $=39.88$ kg 1lb = $45.36x10^-3$ kg $39.88$ kg= $\frac{39.88}{5.36\times10^-3}$ $\approx87.91887125$ = 87.92 lbs
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