Answer : The density of the liquid is (a) 0.665 g/mL
Explanation : Given,
Volume of a liquid = 3.100 mL
Mass of empty bottle = 4.240 g
Total mass of bottle and the liquid = 6.300 g
First we have to calculate the mass of a liquid.
Mass of liquid + Mass of empty bottle = Total mass of bottle and liquid
Mass of liquid + 4.240 g = 6.300 g
Mass of liquid = 6.300 - 4.240 = 2.06 g
Now we have to calculate the density of a liquid.
Therefore, the density of the liquid is 0.665 g/mL