Gchem question !!

[dontbam]

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I have a quick question, for boiling point elevation, the kaplan book has the equation delta T = Kb * m (molality)

In other references, i have the same equation but multipled by the # of ions, say for NaCl, you'll multiple kb * m * 2.

Which one is right?

 

[armorshell]

Your equation is right. It should be:
deltaT=Kb*m*I

where I is equal to the van't Hoff factor, or the theoretical number of ions a molecule dissociates into