Problem: Given the Kf of water is 1.86° C/m, which of the following aqueous solutions has the lowest freezing point?a) 0.18 m KClb) 0.15 m Na 2SO4c) 0.12 m Ca(NO3)2d) pure watere) 0.20 m C2H6O2 (ethylene glycol)

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Problem Details

Given the Kf of water is 1.86° C/m, which of the following aqueous solutions has the lowest freezing point?

a) 0.18 m KCl

b) 0.15 m Na 2SO4

c) 0.12 m Ca(NO3)2

d) pure water

e) 0.20 m C2H6O(ethylene glycol)

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