Q-6) A piece of coal has mass of 80 g and volume of 60 cubic cm. what
will be it's density and relative density.
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Answer:
density=1.34g/cm³
R.D.=1.34
Explanation:
m=80g
v=60 cm³
density= m/v
=80/60
=1.34g/cm³
density of water =1g/cm³
relative density (R.D.)= 1.34g/cm³/1g/cm³
=1.34
R.D. is taken as density of coal and density of water .
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