Asked by Alyssa


Given that the vapor pressure of water is 17.54 Torr at 20 °C, calculate the vapor-pressure lowering of aqueous solutions that are 1.90 m in (a) sucrose, C12H22O11, and (b) aluminum chloride. Assume 100% dissociation for electrolytes.


I got .5799 Torr for sucrose, but I can't figure out what to multiply that by to get the answer for aluminum chloride. I just need that factor to complete this problem.
Answered by DrBob222
The factor to which you refer is i, the van't Hoff factor. It is 4 for AlCl3.