Question: Demonstrate that (a) For a dilute aqueous solution, the numerical value of the molality is essentially equal to that of the molarity. (b) In a

Demonstrate that 

(a) For a dilute aqueous solution, the numerical value of the molality is essentially equal to that of the molarity.

(b) In a dilute solution, the solute mole fraction is proportional to the molality.

(c) In a dilute aqueous solution, the solute mole fraction is proportional to the molarity.

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