Question

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.

URGENT!!!

Answer 1

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