Match the following aqueous solutions with the appropriate letter from the column on the right.
We need to take into account the equation for boiling point elevation:
ΔTb = Kb · bsolute · i
Where: bsolute = molality od the solution
Kb, the ebullioscopic constant, which is dependent on the properties of the solvent.
i. The Vant Hoff factor i accounts for the number of individual particles (typically ions) formed by a compound in solution
i= 3 For CaBr2
i=4 for FeCl3
i=4 for AlCl3
then we need to find which solution have the highest ΔTb
1) ΔTb = Kb(0.17)x(3)= 0.51Kb
2)ΔTb = Kb(0.14)x(4)= 0.56Kb
3)ΔTb = Kb(0.12)x(4)= 0.48Kb
ΔTb = Kb(0.49)x(1)= 0.49Kb
Sorry I made a mistake in the second and third---but the letters are good
the order is
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