What is the mass if the density = 6.0 g/mL and the volume = 18 mL?

1 Answer
Jan 30, 2016

Answer:

The equation for density is #rho=m/V#
Where #rho#=density, #m=mass# and #V#=volume

Explanation:

Fill in what you know:
#(6.0g)/(mL)=("mass " g)/(18 mL)#

Multiply both sides by #18mL# to get rid of the fraction:
#(6.0g)/(mL)*18mL=("mass " g)/(18 mL)*18mL#

#(6.0g)/(cancel(mL))*18cancel(mL)=("mass " g)/(cancel(18 mL))*cancel(18mL)#

#->"mass "=(6.0*18)g=108g#

Of course you could have done this faster by first reworking the equation into:
#m=rho*V# but that is not evident to everybody.