Question

A student finds a piece of metal that she thinks is aluminum. She finds the volume to be 245 cm^3 and the mass to be 612 grams. Is the metal aluminum? Hint: Find the density and show all work including units

Answer 1

Answer:

The piece of metal found by the student is not aluminium.

Explanation:

First we calculate the density using the following formula:

density = mass (g) / volume (cm³)

Now the density of the metal piece:

density = 612 g / 245 cm³ = 2.49 $\frac{g}{cm^{3}}$

The density of aluminium is 2.7 $\frac{g}{cm^{3}}$ so we may conclude that the particular piece of metal found by the student is not aluminium.