2. A beaker weighs 120 g when empty and 200 g
when filled with kerosene. Find the volume
of the beaker. The density of kerosene is 800kg/³.
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Answer:
Total mass=200g
Mass of beaker (beaker weighs when empty) =120g
Density of the kerosene is 800kg/m3
Mass of kerosene =Total mass-mass of the beaker
=200-120g
=80g
The formula for the density is
Density of kerosene =Mass/volume
From this formula we can find the volume of kerosene
Mass/density =Volume of kerosene
80/0.8 100ml
Volume of kerosene is 100ml
So the volume of the kerosene is 100ml
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