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The density of a substance is equal to the mass of a sample of the
substance divided by the volume of the sample
- density = m/V
The density of a substance is an
intensive
property. Knowing the density of a substance allows you to compute the mass of a
sample if you know the volume and vice versa.
Example: A sample of copper weighs 6.34 grams. If the density of
copper is 8.94 g/ml, what is the volume of the sample?
Solution: The density is given by
- density = m/V
Therefore, the volume is given by
- V = m/density
- V = 6.34 g/8.94 g/ml = 0.709 ml
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