Introductory Chemistry (5th Edition)

Published by Pearson
ISBN 10: 032191029X
ISBN 13: 978-0-32191-029-5

Chapter 2 - Measurement and Problem Solving - Exercises - Cumulative Problems - Page 53: 106


The log is made out of Oak.

Work Step by Step

Using the formula $Density=\frac{Mass}{Volume}$ and the conversion factors shown in the formula, the density can be calculated in g/cm^3. $Density = \frac{19.8 lb}{2.7 gal}\times\frac{453.592 grams}{1 lb}\times\frac{1 gal}{3785.41 cm^{3}} = 0.8787 \frac{g}{cm^{3}}$. Therefore the log is made out of oak since the density of the log (0.8787 g/cm^3) nearly matches the density of the oak (0.9 g/cm^3)
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