posted by Rayan .
an empty rd bottle weighs 60 grams but weighs 120 gram when completely filled with water when the bottle is completely with an unknown liquid it weighs 90 gram what will be the volume of the rd bottle
just figure the mass of water, and recall that water has a density of 1g/cm^3
No idea what the unknown liquid has to do with anything.
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
Density =mass /volume
Volume = mass /density
= 60g *1 g / cm-3
Volume of water = volume of RD bottle