Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 1 - Introduction: Matter and Measurement - Exercises - Page 37: 1.53c


$2\times10^1\ mi/gal$

Work Step by Step

$\frac{400\ km}{47.3\ L}\times\frac{1\ mi}{1.6093\ km}\times\frac{1\ L}{1.057\ qt}\times\frac{4\ qt}{1\ gal}=\frac{19.9\ mi}{gal}\approx2\times10^1\ mi/gal$ estimate $400\div50=8$ $8\div1.6=5$ $5\div1=5$ $5\times4=20$
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