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: 1.40

Answer

a) $1.10\times 10^8 mg$ b) $6.83\times10^{-5}m^3$ c) $7.2\times 10^3 L$ d) $6.24\times 10^{-14} lbs$

Work Step by Step

a) $1lb=453.6 g$ $242lb=109771.2 g$ $109771.2 g \times 1000 = 109771200mg$ $=1.09771200\times10^8 mg$ $=1.10\times 10^8 mg$ b) $1cm^3=1\times10^{-6}m^3$ $68.3cm^3=1\times10^{-6}m^3$ $=6.83\times10^{-5}m^3$ c) $1L=1\times10^{-3} m^3$ $7.2 m^3 = 7200 L$ $=7.2\times 10^3 L$ d) $1 pg = 1\times10^{-12} g = 2.20× 10^-15 lbs$ $28.3 pg = 6.24\times 10^{-14} lbs$
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