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Thread: polar/ionic/nonpolar substances

  1. #1 polar/ionic/nonpolar substances 
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    polar and ionic substances dissolve in water, how come nonpolar doesn't?


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  3. #2  
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    Like solves like. Water is a polar molecule with a slight positive charge and a slight negative charge on opposite sides. These charges interact with their polar opposite on other molecules with a charge (i.e ions and other polar molecules).
    It is more energetically favorable for a water molecule to interact with another charged molecule than an uncharged (nonpolar) molecule, and so the nonpolar molecules are "pushed away" in favor of polar molecules and ions, forming two phases.


    ...Wait, what?
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  4. #3  
    Forum Sophomore Matt Lacey's Avatar
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  5. #4  
    Forum Masters Degree organic god's Avatar
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    general rule for selecting a solvent.

    if its polar dissolve it in a polar solvent. e.g.water

    if its non polar dissolve it in something non polar
    everything is mathematical.
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