With a mass of 21 mg and a density of 0.728 g/cm^3. What is its volume in cubic centimeters?

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Answer 1 · 2018-01-19T04:36:21

#~~0.029cm^3#

We first need to convert #21mg# into #g#.

#21mg=21/1000g=0.021g#

Now, we can rearrange the density equation to find the volume.

#rho=m/V#

#:.V=m/rho#

Plugging in #m=0.021g#, #rho=0.728g"/"cm^3#

#V=(0.021g)/(0.728g"/"cm^3)#

Canceling out the #g#,

#V=(0.021cancelg)/(0.728cancelg"/"cm^3)#

#V~~0.029cm^3#