Mass of empty density bottle (M1)=30g
Mass of bottle + water (M2)=75g
Mass of liquid + Liquid (xM3)=65g
Mass of water =M2−M1=75−30=45g
(a) Volume of density bottle = Mass of water 45g
(b) Density of liquid x=
D=Mass of liquidMass of Water=3545
Mass of liquid =M3−M1=65−30=35g
D=Mass of liquidMass of water=3545=0.77 g/cm3
(c) Mass of water in the density bottle =75−30=45g
∴ Volume of water in density bottle =45cc
and mass of the equal volume of liquid in density bottle 65−30=35g
R.D. of liquid =mass of cc of liquidmass of 45 cc of water=3545=79
=0.77