Question

What is the mass of the ethyl alcohol that exactly fills a 300.0 mL container? The density of ethyl alcohol is 0.889 g/mL.

Answer 1

Answer:

- 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