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

a)DENSITY = density is mass per unit volume of a substance.
formula -
density =mass / volume
b)volume of the iron cube = (1.8)^3=5.832
density = 70/5.832 =12 g/cc
c)density = 350/200 = 1.75 g/cc = 1750 kg/m^3

Answer 2

a)Density of a substance is defined as the masss per unit volume of that substance.
:. density= mass /volume
In si system, the unit of mass is kg , the unit of volume is m^3 and the unit of density is kg m^-3 .
Density= mass /volume
= 1kg / 1m^3 = 1 kg m ^ - 3
b) volume = 1.8^3 = 5.832 cm
mass = 70 g
Density= mass / volume
= 70 g / 5.832cm
= 12.00274 or 12 g cm ^-3
c) volume = 200 cm
mass. = 350 g
density= 350 g / 200 cm^-3
1.75 g cm
= 1750 kg m^3




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