Question

Two litres of corn oil has a mass of 1.85kg.What is the density of the oil

Answer 1

Answer:

Usually, density will have units of

g

m

L

when dealing with a liquid or units of

g

c

m

3

when dealing with a solid.

The mass has units of grams,

g

.

The volume will have units of

m

L

or

c

m

3

We are given the density and volume, both of which have good units so all we have to do is rearrange the equation to solve for the mass:

d

e

n

s

i

t

y

×

v

o

l

u

m

e

=

m

a

s

s

volume

×

volume

Density

×

Volume = Mass

1.25

g

mL

×

25

mL

Thus, the liquid has a mass of 31g.