Two identical flasks - one filled with water to the "500 cm"^3 mark, and the other filled with kerosene to the same "500 cm"^3 mark are measured on an electronic balance. The flask filled with water is found to weigh 620 g, and that filled with kerosene weighs 520 g. The empty flask is measured and found to be 120 g. Find the densities of water and kerosene.

Two identical flasks - one filled with water to the "500 cm"^3 mark, a

1.	Two identical flasks - one filled with water to the "500 cm"^3 mark, and the other filled with kerosene to the same "500 cm"^3 mark are measured on an electronic balance. The flask filled with water is found to weigh 620 g, and that filled with kerosene weighs 520 g. The empty flask is measured and found to be 120 g. Find the densities of water and kerosene.
Answer» SOLUTION :Volume of water = `"500 cm"^3` Mass of empty beaker = 120 G Mass of water = 620-120 = 500 g DENSITY of water = M/V `= "500 g/500 cm"^3 = 1 "g/cm"^3` Volume of kerosene = `500 "cm"^3` Mass of kerosene = 520-120 =400 g Density of kerosene = M/V = 400/500 = 0.8 `"g/cm"^3`