1.0 molal aqueous solution of a substance boils at 100.55 °C ; then, at what approximate temperature, it freezes ?

1.0 molal aqueous solution of a substance boils at 100.55 °C ; then, at what approximate temperature, it freezes ? (Kb = 0.51 °C – kg - mole^-1 and Kb = 1.86 °C – kg - mole^-1)

(a) 272 K

(b) 271 K

(d) 274 K

1.0 molal aqueous solution of a substance boils at 100.55 °C ; then, at what approximate temperature, it freezes ?

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