I need to know how to accurately determine whether a substance is polar or not..and i need that method to be able to allow me to put different substances in their order of polarity.
I need to be able to carry out the experiment in a school lab.
2007-02-01 20:00:14 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Polar compounds dissolve easily in other polar compounds.
Non-polar compounds dissolve more easily in non-polar compounds.
2007-02-01 20:06:42 · answer #1 · answered by chimpus_incompetus 4 · 0⤊ 0⤋
do an eluotropic test on Al2O3 or Silica. There are already a lot of tables on books.
Use a 3d modeling software and calculate the dipolar moment of the molecule, normally this correlate well with the polarity of the molecule.
take the molecule: try to solubilize it in Pentane, Hexane, Cyclohexane, Heptane or something really similar (and very apolar). If it solubilize is an Apolar molecule. if not it's polar !
2007-02-02 04:45:14 · answer #2 · answered by scientific_boy3434 5 · 0⤊ 0⤋