A piece of titanium metal has a mass of #67.5# #g# and a volume of #15# #cm^3#. What is the density of titanium?

1 Answer
Aug 20, 2016

Answer:

#"Density, "rho="mass"/"volume"#, so #rho="a bit over 4 g"*cm^-3#

Explanation:

#rho# #=# #(67.5*g)/(15*cm^3)# #=# #??g*cm^-3#. Should iron float?

Note that the units #cm^3# and #mL# are used interchangeably, and often cause a bit of angst. #1*cm^3# #=# #1*mL# indisputably.

Why? Well #1*cm^3# #=# #(1xx10^-2*m)^3# #=# #1xx10^-6*m^3# #=# #1xx10^-3*L# #=# #1*mL# because there are #1000*L# in a #"cubic metre"#.