The mass of 3.0 ml of a liquid having density 3.15 g/m
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Answered by
1
Answer:
12 mL
Explanation:
12 mL
Explanation:
The thing to remember about a substance's density is that it tells you the mass of every unit of volume of said substance.
In this case, the liquid is said to have a density of
5.45 g mL
−
1
. The density is expressed in grams per milliliter, so right from the start, you can say that you know the mass of
1 mL
of liquid.
More specifically, you can say that
1 mL
of this liquid has a mass of
5.45 g
.
All you have to do now is use the given density as a conversion factor to help you go from mass to volume
65
g
⋅
1 mL
5.45
g
=
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
∣
∣
a
a
12 mL
a
a
∣
∣
−−−−−−−−−−−
The answer is rounded to two sig figs, the number of sig figs you have for the mass of the liquid.
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