Answer :

The boiling point of a 0.21 M solution of CaSO₄ in water is  0.107 °C.

For a dilute solution,

molarity ≅ molality

Molarity is approximately equal to the molality.

The elevation in the boiling point is a phenomenon that the boiling point of any liquid will be higher if any other compound is added to it. It depicts that a solution has higher boiling point than that of a solvent.

            ΔTb = i x Kb x m

where,

ΔTb = Boiling point elevation

i = Van't Hoff factor

Kb = Molal boiling point constant

m = Molality of solution

Van't Hoff factor is measurement of effect of solute. It is a ratio of concentration of particles to concentration of substance.

Here, i = 1, as CaSO₄ does not dissociate into ions in water.

Given data -

  Kb = 0.512°C/m

  m = 0.21 m

  i = 1

Putting the values,

ΔTb = 1 x 0.512 x 0.21

ΔTb = 0.107°C

Hence,

The boiling point of CaSO₄ is 0.107 °C

 

To learn more about CaSO₄,

brainly.com/question/14592314

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