40 grams
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The volume of the rock is the amount of water it displaces, 250ml. Considering that 1ml of water has a mass of 1 mg, the mass of the rock is 5.63 x 250gm = 1,407.5mg.
The standard unit for measuring the mass of water, along with the mass of any other material, is a kilogram. And that is abbreviated as kg.
355 grams. A cubic centimeter of water has a mass of 1 gram.
water has less density than lead. Mass depends on its volume
It is: 5kg-1kg = 4kg