1.

The mass of an empty density bottle is 21.8 g,when filled completely with water it is 41.8 gand when filled completely with liquid it is40.6 g. Find:.(a) the volume of density bottle(b) the relative density of liquid.

Answer»

Density = Mass / Volume= (40.6 - 21.8) / 20= 0.94 g/cm^3

Density of liquid A is 0.94g/cm^3

Volume of the bottle, V=20 mlMass of bottle,m= 21.8g.

When filled with liquid the bottle weighs 40.6g

Therefore, Mass of liquid in the bottle, m= 40.6 – 21.8 = 18.8g

Density of liquid = m/ V = 18.8/20

=>0.94 g/ml

The mass of empty bottle =21.8gwhen filled complete with water =41.8g =21.8 -41.8g =20 gthe mass of water =20 gthe volume of the water in cubic cm =20 mlwhen filled complete with water =40.6gthe empty bottle =21.8g when filled with water =40.6-21.8g =18.8gDensity of liquid =m÷v=18.8 ÷20 g =0.94

The mass of empty bottle =21.8gwhen filled complete with water =41.8g =21.8 -41.8g =20 gthe mass of water =20 gthe volume of the water in cubic cm =20 mlwhen filled complete with water =40.6gthe empty bottle =21.8g when filled with water =40.6-21.8g =18.8gDensity of liquid =m÷v=18.8 ÷20 g =0.94



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