Question

find out the mass of a solvent present in 500 g of 30% sodium chloride solution.​

Answer 1

Answer:

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Answer 2

Answer:

350g.

Explanation:

Given : Mass of solution = 500g ,

            Concentration of solution = 30 %,

 To Find : Mass of solvent present in 500 g of 30% sodium chloride   solution.

Solution : Here, we can use the following formula ;

                Concentration by mass (%) = Mass of solute/Mass of Solution,

 So, 30% = Mass of solute/500,

 Therefore, 30/100 * 500 = Mass of solute,

 Therefore,  Mass of solute = 150g,

  Since, Mass of solution = Mass of solvent + Mass of solute,

  Therefore, 500g - 150g =  Mass of solvent = 350g.

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