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Chapter 1: Q30E (page 57)
A 2.0 liter volume of hydrogen gas combined with 1.0 liter of oxygen gas to produce 2.0 liters of water vapor. Does oxygen undergo a chemical or physical change?
Chemical change.
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The density (d) of a substance is an intensive property that is defined as the ratio of its mass(m) to its volume (V).
\(\begin{aligned}{\rm{density = }}\frac{{{\rm{mass}}}}{{{\rm{volume}}}}\\{\rm{d = }}\frac{{\rm{m}}}{{\rm{v}}}\end{aligned}\)
Considering that mass and volume are intensive properties, explain why their ratio, density is intensive.
Calculate these volumes.
a) What is the volume of 25g of iodine, density = 4.93 g/cm3?
b) What is the volume of 3.28 g gaseous hydrogen, density = 0.089 g/L?
Identify the following properties as either extensive or intensive
Remove all of the blocks from the water and add the green block to the tank of water, placing it approximately in the middle of the tank. Determine the density of the green block.
A barrel of oil is exactly 42 gal. How many liters of oil are in a barrel?
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