Answer:
1.83 g/cm^3
Explanation:
Weight of rock in air = 42.2 N
Weight f rock in water = 30.6 N
Weight of rock in unknown liquid = 21.0 N
The relative density of the unknown liquid is given by the following formula
[tex]relative density of unknown liquid = \frac{weight in air - weight in liquid}{weight in air - weight in water}[/tex]
[tex]relative density of unknown liquid = \frac{42.2-21.0}{42.2-30.6}[/tex]
= 1.83
So, the density of unknown liquid is 1.83 g/cm^3.
Thus, the density of the unknown liquid is 1.83 g/cm^3.
