Question

what is the mass of a 4.00 cm3 piece of sodium chloride having a density of 2.16 g/cm3

Answer 1

Density is a ratio between mass and volume.

ρ

=

m

a

s

s

v

o

l

u

m

e

The symbol for density is

ρ

. We can convert a mass to volume or volume to mass by using the density equation. If we rearrange the density equation, then the mass is:

m

a

s

s

=

ρ

×

v

o

l

u

m

e

and the volume is:

v

o

l

u

m

e

=

m

a

s

s

ρ