A relative density bottle weight 20g when empty 80g when filled with water and 100g when with liquid Find the relative density of liquid
The volume of the bottle remains constant whether it is empty or filled with any liquid. Therefore, the weight difference between empty and filled bottles gives the weight of the liquid.
The weight of the liquid = 100g - 20g = 80g (weight of bottle filled with liquid - weight of empty bottle)
The weight of the same volume of water = 80g - 20g = 60g (weight of bottle filled with water - weight of empty bottle)
Relative density of liquid = (weight of liquid) / (weight of the same volume of water)
Relative density of liquid = 80g / 60g = 1.33
Therefore, the relative density of the liquid is 1.33.