If someone can help me understand, and figure this problem.
If each substance costs the same amount per kilogram (kg), which would be most cost-effective as a way to lower the freezing point of water? (Assume complete dissociation for all ionic compounds.) Explain. Ill post the 5 molecules as a drawing.

Question

If someone can help me understand, and figure this problem. 
If each substance costs the same amount per kilogram (kg), which would be most cost-effective as a way to lower the freezing point of water? (Assume complete dissociation for all ionic compounds.) Explain.     Ill post the 5 molecules as a drawing.

lilsis76 · Answer

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lilsis76 · Answer

@thomaster  do you think you can help explain this too me please?

thomaster · Answer

which one has the lowest molecular mass?

lilsis76 · Answer

okay let me try and figure that out. I was freaking out because I thought I had to do something else 0.o okay Ill be right back , give me a minute please.

thomaster · Answer

The one with the lowest molecular mass has the most molecules in 1 KG.
So that would be the most cost-efficient way to lower the freezing point of water.

lilsis76 · Answer

|dw:1379896786385:dw|  @thomaster . so out of these 5 samples, b)NaCl would lower the freezing point of water, correct?

lilsis76 · Answer

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