Mass of density bottle is 40 g when empty, 60 g when filled with water, 53 g when filled with alcohol. Find the volume of density bottle & relative density of alcohol.
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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 iquid = 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
Explanation:
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