Science
can some one please help me please fast fast

Question Description

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

FeBr3


Final Answer

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 (-) 


PaulH (33)
Purdue University

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