Explanation:
As it is given that mass is 6 grams. Therefore, volume occupied by the rock is as follows.
Volume = final volume - initial volume
= 23 ml - 20 ml
= 3 ml
Since, density is defined as the amount of mass present in per unit volume of a substance.
Mathematically, Density = [tex]\frac{mass}{volume}[/tex]
Therefore, putting the given values into the above formula as follows.
Density = [tex]\frac{mass}{volume}[/tex]
= [tex]\frac{6 g}{3 ml}[/tex]
= 2 g/ml
Thus, we can conclude that density of the rock is 2 g/ml.
