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Chapter 1: Problem 38
In an engineering reference book, you find that the density of iron is \(0.284 \mathrm{lb} / \mathrm{in.}^{3} .\) What is the density in \(\mathrm{g} / \mathrm{cm}^{3} ?\)
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Determine the number of the following: (a) square meters \(\left(\mathrm{m}^{2}\right)\) in 1 square kilometer \(\left(\mathrm{km}^{2}\right)\) (b) cubic centimeters \(\left(\mathrm{cm}^{3}\right)\) in 1 cubic meter \(\left(\mathrm{m}^{3}\right)\) (c) square meters \(\left(\mathrm{m}^{2}\right)\) in 1 square mile \(\left(\mathrm{mi}^{2}\right)\) \((1 \mathrm{mi}=5280 \mathrm{ft})\)
Express each of the following to fur significant figures. (a) 3984.6 (b) 422.04 (c) 0.0033 (d) 902.10 (e) 0.02173 (f) 7000 (g) 7.02 (h) 67,000,000
A vinegar sample is found to have a density of \(1.006 \mathrm{g} / \mathrm{mL}\) and to contain \(5.4 \%\) acetic acid by mass. How many grams of acetic acid are present in \(1.00 \mathrm{L}\) of this vinegar?
Perform the following conversions. (a) \(1.55 \mathrm{kg}=\)________\(\mathrm{g}\) (b) \(642 \mathrm{g}=\)________\(\mathrm{kg}\) (c) \(2896 \mathrm{mm}=\)________\(\mathrm{cm}\) (d) \(0.086 \mathrm{cm}=\)________\(\mathrm{mm}\)
State whether the following properties are physical or chemical. (a) A piece of sliced apple turns brown. (b) A slab of marble feels cool to the touch. (c) A sapphire is blue. (d) A clay pot fired in a kiln becomes hard and covered by a glaze.
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