Answer:154 grams, assuming that the sugar is pure glucose
Explanatio:
Well, the volume of the solution is
500
mL
, and
20
%
of it is sugar, so the volume of sugar in the solution is:
500
mL
⋅
20
%
=
100
mL
Now, I assume the sugar to be pure glucose
(
C
6
H
12
O
6
)
. To find the mass of sugar, we have to multiply the volume of the sugar found by its density.
Glucose has a density of
1.54
g/cm
3
. Note that
1
cm
3
≡
1
mL
, so the density of glucose can also be written as
1.54
g/mL
.
Therefore, the mass of sugar found in this solution will be:
100
mL
⋅
1.54
g
mL
=
154
g
