Question

The mass of a density bottle is 30 gram when empty 60 gram when filled with water and 54 gram when filled with alcohol find the density and relative density of alcohol.​

Answer 1

Answer:

Mass of empty density bottle, M1 = 30 grams

MAss of bottle and water, M2 = 75 grams

Mass of liquid and liquid x, M3 = 65 grams

Mass of water = M2 – M1 = 45 grams

a) Volume of density bottle = Mass of water = 45 grams

b) Density of liquid x, D = mass of liquid/mass of water = 35/45

Mass of liquid = M3 – M1 = 65 – 30 = 35 grams

D )Mass of liquid/mass of water = 35/45 = 0.77 grams/cm3

c) Mass of water in the density bottle = 75 – 30 = 45 grams

=> Therefore, the volume of water in density bottle = 45 cc

=> Mass of the liquid whose volume is equal to the density bottle = 65 – 30 = 35 grams

=> Therefore, relative density of the liquid = mass of 45 cc of liquid/mass of 45 cc of water = 35/45 = 7/9 = 0.77