Question

Use the equation d=m/v. If a rock has a density of 2g/cm^3 and a volume of 8cm^3, what is the mass?

a. 128 g
b. 16 g
c. 0.25 g
d. 4 g

Answer 1

The mass is 16 [g]

Step-by-step explanation:

We have to remember the formula that defines density, which mentions that the density is equal to mass divided by the volume.

`Density = mass / volume\\where:\\density = 2[(g)/(cm^(3) ) ]\\Volume = 8 [cm^(3)]`

Now we clear the mass:

`mass= density*volume\\mass = 2[(g)/(cm^(3) )]*8[cm^(3) ]\\mass = 16 [g]`