What is the density of a piece of wood with a mass of #343# #g# and a volume of #45# #cm^3#?

1 Answer
Feb 5, 2016

Answer:

#D ~~ 7.6 g/(cm^3)#

Explanation:

The density of an object is its mass per unit volume. In this case, it can be computed using the formula below:

#rho = m/v#
Where #rho# is the density, #m# is the mass of the object while #v# is the volume.

Since in this question you are given both the mass and the volume, you just need to plug in the values...

[Given]
#m = 343 g#
#v = 45 cm^3#

[Solution]
#D = (343 g)/(45 cm^3)#
#D ~~ 7.622g/(cm^3)#
#D ~~ 7.6 g/(cm^3)#

Note that the density of an object or substance can be expressed in different units. Some of the more commonly used are:
- #g/(cm^3)# or #g/(mL)#
- #kg/m^3#