Learn the toughest concepts covered in your GOB - General, Organic, and Biological Chemistry class with step-by-step video tutorials and practice problems.

Matter and Measurements

The **D****ensity of geometric objects** generally includes spheres, cubes and cylinders.

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Density of Geometric Objects Concept

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Density of Geometric Objects Example

5m

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Problem

A copper wire (density = 8.96 g/cm^{3}) has a diameter of 0.32 mm. If a sample of this copper wire has a mass of 21.7 g, how long is the wire?

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Problem

If the density of a certain spherical atomic nucleus is 1.0 x 10^{14} g/cm^{3} and its mass is 3.5 x 10^{-23} g, what is the radius in angstroms? (Å= 10^{−10} m)

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