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7 Nov 2021

Given information

The mass percent of is .

The volume of solution is .

The temperature of solution is .

The vapor pressure of water at is .

 

Step-by-step explanation

Step 1.

The mass percent of , that is , represents that of is present in of water.

The number of moles of is calculated by the formula,

(considered as equation 1)

Where,

  • is the mass of present in solution.

  • is the molar mass of .

The actual number of moles of present in the solution is calculated by the formula,

(considered as equation 2)

Where,

  • is the Van’t Hoff factor of .

  • is the number of moles of .

The given compound is given to be completely dissociable. The Van’t Hoff factor of is .

The number of moles of water contained in of the vapors above solution is calculated by the formula,

                                                                                                     

(considered as equation 3)

Where,

  • is the vapor pressure of water above liquid.

  • is the volume of solution.

  • is the universal gas constant.

  • is the temperature of solution.

 

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