An empty RD bottle weighs 60 g but weighs 120 g when completely filled with water. When the bottle is completely filled with an unknown liquid it weighs 90 g .Calculate the a)volume of the RD bottle b)density of the unkown liquid
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Mass of empty RD bottle (m1)=60 g Filled with liquid (m2)= 120g
Filled with unkoen liquid (m3)=90g
Mass of water = m2 - m1= 120g-60g
60g
Density =mass /volume
Volume = mass /density
= 60g *1 g / cm-3
= 60cm-3
Volume of water = volume of RD bottle
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