If a 0.610 m aqueous solution freezes at –3.00 °c, what is the van\'t hoff factor, i, of the solute? kf values can be found here

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adell [148]

4 years ago

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If a 0.610 m aqueous solution freezes at –3.00 °c, what is the van\'t hoff factor, i, of the solute? kf values can be found here

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Chemistry

1 answer:

LiRa [457] · Answer 1 · 2021-12-03T12:52:53+03:00

ΔT = 3°C = 3 K.
Kf(H₂O) = 1,853 K·kg/mol.
b = 0,610 m = 0,610 mol/kg.
b = n ÷ m(H₂O).
ΔT = Kf · b · i.
i = ΔT / Kf · b.
i = 3 K / 1,853 K·kg/mol · 0,610 mol/kg.
i = 2,65.
i - Van 't Hoff factor.
b - molality.
ΔT - change in temperature.