Copper has a density of #8.920# #g##/##cm^3#. What mass of copper will occupy #45# #cm^3#? What volume of copper will have a mass of #1.0# #kg#?

1 Answer
Feb 17, 2016

Answer:

#rho = ("Mass")/("Volume")# Simply use this relationship to get the masses.

Explanation:

From above, #"Volume"# #=# #"Mass"/rho#, for a copper volume of #45# #cm^3#, we simply multiply by #rho# to get mass:

#"Mass"# #=# #rhoxx"volume"# #=# #8.920*g*cancel(cm^-3)xx45*cancel(cm^3)# #=# #??g#

For the volume with a mass of #1# #kg#, divide mass by density:

#(1000*cancelg)/(8.920*cancelg*cm^-3)# #=# #??# #cm^3#.