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Arihangdu
 one year ago
NaCl or CaCl2 which is effective to melt ice? Why? Help please.
Arihangdu
 one year ago
NaCl or CaCl2 which is effective to melt ice? Why? Help please.

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Photon336
 one year ago
Best ResponseYou've already chosen the best response.1Let's figure out how many molecules are produced first. we do this for both reactions: we count up the total number of molecules produced to get the van hoff factor i \[NaCl > Na ^{+} + Cl ^{}\] 2 molecules, so i = 2 \[CaCl_{2} > Ca ^{+} + 2Cl ^{} \] 3 molecules so i = 3. I think that CaCl2 would be better/more effective to melt ice. @shalante thoughts?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You're referring to the van't hoff equation there. Higher the ionice strength of the salt solution, the lower the melting point. CacL\(_2\) would be more effective than salt (NaCl) CaCl\(_2\) which is highly soluble in water and a nice hygroscopic nature that attractss and holds water.

aaronq
 one year ago
Best ResponseYou've already chosen the best response.0it's called the van't hoff factor, but both answers are correct http://www.kentchemistry.com/links/Math/vant%20hoff.htm
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