Question

how much water should be added to 15 grams of salt to obtain 15% salt solution .
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Answer 1

Answer:

x=85g

Explanation:

(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.