The mass of an empty density bottle is 21.8 g, when filled completely with water is 41.8 g and when filled completely with liquid it is 40.6 g. Find :

Question

1 Answer

answered Sep 13, 2018 by Sunidhibharti (89.5k points)
selected Sep 14, 2018 by Vikash Kumar

Best answer

Density of water is 1 g Cm³

∴ Volume of density bottle = weight of water in grams completely filling the bottle

(a) Volume of density bottle:

Mass of empty density bottle = M₁ = 21.8 g

Mass of bottle + water = M₂ = 41.8 g

∴ Mass of water completely fih1ig the density bottle = M₂ — M₁

= 41.8 - 21.8 = 20g

But 1 g of water has volume = 1 cc

∴ Volume of bottle (density bottle) = volume of water = 20 c.c. = 20 ml

(b) The relative density of liquid:

Mass of 20 c.c. of liquid = (mass of density bottle + mass of 20 c.c of liquid- mass of density bottle)

= 40.6 - 21.8

= 18.8 g

Mass of 20 c.c of water = 20g

Relative density of liquid