an empty relative density bottle has a mass of 35g.when filled with water its mass becomes 85g
Mass of water
Volume of the bottle (take the density of water to be 1g/cm³
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To calculate the relative density of an object, you need to compare its density to the density of another substance, usually water. In this case, you have an empty relative density bottle and its mass before and after filling it with water.
1. Determine the mass of water:
- Mass of filled bottle = 85g
- Mass of empty bottle = 35g
- Mass of water = Mass of filled bottle - Mass of empty bottle = 85g - 35g = 50g
2. Determine the volume of water:
The volume of water will be the same as the volume of the relative density bottle when it's filled. Since the relative density bottle is usually designed with a known volume, you should be able to find this information on the bottle or in accompanying documentation. Let's assume the volume of the bottle is 50mL (milliliters).
3. Calculate the density of water:
Density = Mass / Volume
Density of water = Mass of water / Volume of water = 50g / 50mL = 1g/mL
4. Determine the relative density:
The relative density is the ratio of the density of the substance to the density of water. In this case, the substance is the water itself.
Relative Density = Density of substance / Density of water
Relative Density = 1g/mL / 1g/mL = 1
Therefore, the relative density of water in this bottle is 1.