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Such molecules are said to be polar because they possess a permanent dipole moment. A good example is the dipole moment of the water molecule. Molecules with mirror symmetry like oxygen, nitrogen, carbon dioxide, and carbon tetrachloride have no permanent dipole moments.
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hyperphysics.phy-astr.gsu.edu/hbase/electric/diph2o.htm...
hyperphysics.phy-astr.gsu.edu/hbase/electric/diph2o.html
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The electric dipole moment for a pair of opposite charges of magnitude q is defined as the magnitude of the charge times the distance between them and the defined direction is toward the positive charge.
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hyperphysics.phy-astr.gsu.edu/hbase/electric/dipole.htm...
hyperphysics.phy-astr.gsu.edu/hbase/electric/dipole.html
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Dipole - Wikipedia, the free encyclopedia
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In physics, there are two kinds of dipoles : •An electric dipole is a separation of positive and negative charges. The simplest example of this is a pair of electric charges of equal magnitude but...
en.wikipedia.org/wiki/Dipole
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Dipole Moment Molecular compounds are either polar or nonpolar. Here are some examples: ... The measure of molecular polarity is a quantity called the dipole moment (u). Dipole moment is defined as magnitude of charge (Q) times distance (r) between the charges.
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mooni.fccj.org/~ethall/dipole/dipole.htm
mooni.fccj.org/~ethall/dipole/dipole.htm
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Dipole moment is the measure polarity of a polar covalent bond . In language of physics it can be defined as the measure of strength of electric dipole. It is defined as the product magnitude of charge on the atoms and the distance between ...
http://wiki.answers.com/Q/What_is_a_dipole_moment
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The dipole moment is defined as the product of the total amount of positive or negative charge and the distance between their centroids The centroids of the positive and negative charges in a molecule are determined in a manner similar to that used to determine the centre of mass of a system.
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www.chemistry.mcmaster.ca/esam/Chapter_7/section_3.html
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The degree of polarity of a molecule is expressed in terms of dipole moment. Definition:; The product of magnitude of charge on a molecule and the distance between two charges of equal magnitude with opposite sign is equal to dipole moment.
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www.citycollegiate.com/dipolemoment.htm
www.citycollegiate.com/dipolemoment.htm
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Depending on the molecular shape, polar bonds can give rise to a polar molecule, one with an overall uneven distribution of electron charge. We can see this charge imbalance when the molecules are placed in an electric field. Note the polar arrows and the colors. If red indicates high electron density ... With the field on,
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www.mhhe.com/physsci/chemistry/chang7/esp/folder_struct...
www.mhhe.com/physsci/chemistry/chang7/esp/folder_structure/bo/m4/s2/index.htm
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