Which of these solutions has the highest freezing point?
1.0 M molecular sucrose (C12H22O11)
1.0 M ionic sodium chloride (NaCl)
1.0 M ionic calcium bromide (CaBr2)
1.0 M ionic aluminum bromide (AlBr3)
1.0 M ionic potassium chloride (KCl)

Question

Which of these solutions has the highest freezing point?
1.0 M molecular sucrose (C12H22O11)
1.0 M ionic sodium chloride (NaCl)
1.0 M ionic calcium bromide (CaBr2)
1.0 M ionic aluminum bromide (AlBr3)
1.0 M ionic potassium chloride (KCl)

anonymous · Answer

Step 1: Calculate the freezing point depression of benzene. Tf = (Freezing point of pure solvent) - (Freezing point of solution) ...
Step 2 : Calculate the molal concentration of the solution. molality = moles of solute / kg of solvent. ...
Step 3: Calculate Kf of the solution. Tf = (Kf) (m)
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