## College Physics (4th Edition)

Published by McGraw-Hill Education

# Chapter 13 - Problems - Page 498: 32

#### Answer

(a) $13.003~u$ (b) $2.16\times 10^{-26}~kg$

#### Work Step by Step

(a) We can find the mass of one $^{13}C$ atom: $m = 13.003~g/mol\times \frac{1~u}{1~g/mol} = 13.003~u$ (b) We can find the mass of one $^{13}C$ atom: $m = \frac{13.003\times 10^{-3}~kg/mol}{6.022\times 10^{23}~atoms/mol} = 2.16\times 10^{-26}~kg$

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