*Recall:***Density** is given by:

We know the mass of the wire, **0.3624 g**. For the volume, we need to calculate the volume of the cylindrical wire. Recall that the volume of a cylinder is given by:

where **r = radius** and **h = height or length**.

What is the density of lithium metal in g/cm^{3} if a cylindrical wire with a diameter of 2.40 mm and a length of 15.0 cm has a mass of 0.3624 g?

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