The volume of 50g of a substance is 20 cm3. If the density of water is 1g/cm3,will the substance sink or float when placed on the surface of water ? What will be the mass of water displaced by the substance?

Given that Mass of substance is = 50g and volume is = 20cm³.

Then the density of the substance will be =

As we know that density of water = 1 g/cm³

According to Archimedes' principle the substances having higher density then water will sink in water & substances having density lower then water will float on the surface of water.

Since the density of the substance is greater than the density of water, it will sink in water.

The volume of water displaced =Volume of substance = 20 cm³

Mass of water displaced By substance = volume × density = 20×1 = 20g