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Posted by on Tuesday, February 8, 2011 at 9:36am.

determine the amount of solute needed to make 100ml aqueous solution of NaCl and MgCl2 that will cause a 10 degree change in freezing point. Determine the amounts of solute needed to make 100ml aqueous of AlCl3 and ethanol that will cause a 10 degree change in boiling point.

  • chemistry - , Tuesday, February 8, 2011 at 11:40pm

    Use the same system used for the KBr, Al2(SO4)3. Mg(NO3)2 problem EXCEPT use Kb for the boiling point constant instead of Kf (the freezing point constant).
    i = 4 for AlCl3
    i = 2 for NaCl
    i = 1 for ethanol
    i = 3 for MgCl2

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