The volume of 900 g of a substance is 1000 cm³. Will the substance float or sink in water, if the density of water is 1 g/cm³? What will be the mass of water displaced by this substance?

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Solution

Mass of the substance = 900 g
Volume of the substance = 1000 cm³
Density of the substance = Mass / Volume
= 900 g / 1000 cm³
= 0.9 g/cm³
As the density of the substance (0.9 g/cm³) is less than the density of the water (1 g/cm³), the substance will float on water.

Mass of water displaced by the substance = Density of water × Volume of the substance
Mass of water displaced by the substance = 1 g/cm³× 1000 cm³
= 1000 g

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