Question

The mass of an empty density bottle is 30 g, it is 75 g when filled completely with water and 65 g when filled completely with a liquid. Find :

(a) volume of density bottle,

(b) density of liquid, and

(c) relative density of liquid.

Answer 1

Mass of empty density bottle (M₁) =30 g

Mass of bottle + Water (M₂) 75 g

Mass of liquid + Liquidx (M₃)= 65 g

Mass ofwater=M₂—M₁ = 75—30=45 g

(a) Volume of density bottle = Mass of water 45 g

(b) Density of Iiquid x =

(c) Mass of water in the density bottle = 75 — 30 = 45 g 

∴ Volume of water in density bottle = 45 cc 

and mass of the equal volume of liquid in density bottle 65—30 = 35g