Monday
July 28, 2014

Homework Help: chemistry

Posted by Sarah on Thursday, January 22, 2009 at 5:47pm.

Which has the highest boiling point and lowest freezing point?

(a) 0.4 m NaCl

0.3 m Na2SO4

0.5 m sucrose (nonelectrolyte)


(b)0.2 m HCl

0.2 m acetic acid

0.3 m KOH (weak electrolyte)


(c) 0.5 m ethylene glycol (nonelectrolyte)

0.4 m glucose (nonelectrolyte)

0.3 m BaCl2



______________________


(a) Highest BP: .4m NaCl
Lowest FP: .5 m surcrose


(b) Highest BP: ..3m KOH
Lowest FP: .2m acetic acid


(c) Highest BP: .3m BaCl2
Lowest FP: I am unsure


Could someone check this for me?? Thank you!!!

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