(a) How much water should be added to 15g of salt to obtain 15% salt solution?
(b) What is the main difference between aqueous solution and non-aqueous solution?
(c) Why does solution of sodium chloride not show Tyndall effect where as the mixture of water and milk shows?
(a)Concentration of solution = 15%
Mass of solute = 15g
Mass of solvent = 15 + X
Concentration of solution = (Mass of solute / Mass of solution) X 100
15 = (15/15+X) x 100
15 + X = (15/15) x 100
X = 100 - 15
X = 85 g
(b)In an aqueous solution, the solute is dissolved in Water; whereas in case of non - aqueous solution, solute is dissolved in any liquid other than water.
(c)Sodium chloride gets dissolved in water completely and forms true solution whereas milk into water forms a colloidal solution which shows Tyndall effect.
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