# A piece of iron weighs 44.5gf in air,39.5gf in water and 49.3gf in paraffin Calculate the density of Iron and the density of Paraffin

Hows it that Apparent weight in paraffin is greater than true weight

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Hows it that Apparent weight in paraffin is greater than true weight

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there is probably a mistake in teh given number for weight
in paraffin liquid. It is 40.3 gf rather than 49.3 gf

Relative density of iron = weight in air / (weight in air - weight
in water)

= 44.5 gf / (44.5 - 39.5) gf =
8.9

density of iron = 8.9 * 1000 kg /cubic meter = 8900 kg/ cub meter

relative density of paraffin

= (weight of iron piece in air - weight in paraffin) / (weight in
air - weight in water)

= (44.5 - 40.3 ) / ( 44.5 - 39.5)

= 4.2 / 5 = 0.84

density of paraffin liquid = 840 kg/cubic meter