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A) Define density. Give its mathematical formula.

b) The mass of an iron cube having an edge length 1.8 cm is 70 g. Find its density.
c) The volume of a 350 g sealed tin is 200 cubic cm. Find the density of the tin in g/cc. Also find the density in SI unit.




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Mass density of a substance is the mass divided by the volume occupied by the substance.

density = mass / volume

density = 70 g / 1.8³ cm³  = 12 gm/cm³

  unit in SI system of density =  kg/m³ = 1000 * density value in CGS , in gm/cm³

     density of tin box = 350 gm/200 cc = 1.75 gm/cc
                     = 1.75 * 1000 kg/m³ = 1, 750 kg/m³

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