Using the van't Hoff factors in the table below, calculate the mass of solute required to make each aqueous solution. Va

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Using the van't Hoff factors in the table below, calculate themass of solute required to make each aqueous solution.
Van't Hoff factors at 0.05 mm concentration inaqueous solution
A. Calculate the mass of solute required to make a sodiumchloride solution containing 1.61×102 gg ofwater that has a melting point of-1.9 ∘C∘C. (Kf=1.86∘C/mKf=1.86∘C/m)
B. Calculate the mass of solute required to make2.61×102 mLmL of a magnesium sulfate solutionthat has an osmotic pressure of 3.91 atmatm at307 KK .
C. Calculate the mass of solute required to make aniron(III)(III) chloride solution containing2.61×102 gg of water that has a boiling pointof 108 ∘C∘C. (Kb=0.512∘C/mKb=0.512∘C/m)