aluminum has a density of 2.70 gm/cm cubed. what is the mass of a peice of alluminum that has a volume of 100.00 cm cubed

Answer: 270 g

Explanation:

The density of a substance tells you the mass of exactly one unit of volume of said substance.

Density Al = 2.70 gm/cm^-3 Every 1 mL of Aluminium has a mass of 2.70g. Use the density of Al as a conversion factor to go from cubic cm of Al to grams.

100cm^3 x 2.70g / 1cm^3 = 270 g

You would cross out the cm^3, so that grams are left. Then you will multiply 100 and 2.70 and you should get 270. The answer is rounded to three sig figs.

density=2.70

volume=100

mass=density*volume

so,

2.7*100=270

mass is 270gram