The density of mercury metal is 13.6 g/mL. What is the mass 45 mL of the metal?

2 Answers
Feb 3, 2016

Answer:

612gm

Explanation:

the mass of #1ml# is #13.6gm#
#:.#the mass of #45ml# is=#(13.6xx45)#gm
#=612gm#

Feb 3, 2016

Answer:

A good 600 grams.

Explanation:

Density, #rho# #=# #("Mass")/("Per unit volume")#. For chemists, usually the units are given as #g*mL^-1#

So, given that #rho# #=# #g/(mL)#; all we have to do is multiply the density by the volume to give the mass (i.e. #g# #=# #rhoxxmL)#:

#"Mass"# #=# #rhoxx"Volume"# #=# #13.6*gcancel(mL^-1)##xx45# #cancel(mL)# #=# #??g#