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A) 0.4 moles of sodium nitrate 

     B) 1.2 moles of calcium acetate 
     C) 0.8 moles of ethylene glycol (a nonelectrolyte) 
     D) 1.0 moles of ethanol (a nonelectrolyte) 
     E) 1.6 moles of calcium phosphate 

2,, ion formulas for this  soluble


Mar 16th, 2015

1 ) sodium nitrate dissociates in two molecules, 0.8 M solution in 1 liter of water.

calcium acetate 3 molecule dissociation 3.6 M

0.8 moles ethylene glycol = 0,8 M solution

1 mole ethanol = 1 M solution

1.6 Moles calcium phosphate= 3.2 M solution

Order of freezing point depression from lowest to highest   C , A, D, E, B

2) ion formula FeBr3---> Fe (+3) + 3Br (-) 

Mar 17th, 2015

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