College Physics (4th Edition)

Published by McGraw-Hill Education
ISBN 10: 0073512141
ISBN 13: 978-0-07351-214-3

Chapter 13 - Problems - Page 498: 31


One molecule of $CO_2$ has a mass of $7.3\times 10^{-26}~kg$

Work Step by Step

A carbon atom consists of 6 protons and 6 neutrons. An oxygen atom consists of 8 protons and 8 neutrons. A molecule of $CO_2$ consists of 22 protons and 22 neutrons. The mass of one molecule of $CO_2$ is $44~u$ We can find the mass of one $CO_2$ molecule: $m = (44~u)(1.66\times 10^{-27}~kg/u) = 7.3\times 10^{-26}~kg$ One molecule of $CO_2$ has a mass of $7.3\times 10^{-26}~kg$
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