Boiling point elevation and the van 't Hoff factor
Which 1.0 m aqueous solution has the highest boiling point?
Answer D: explanation for every choice
A
NaCl gives two ions (i ≈ 2).
B
Glucose does not dissociate (i = 1).
C
Sucrose does not dissociate (i = 1).
D
Correct. CaCl2 dissociates into three ions (i ≈ 3), producing the most solute particles.
TakeawayΔTb = i·Kb·m. More particles, bigger effect.
Equation usedColligative properties
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