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How do you know if a molecule is polar based on electronegitivity?
Wiki User
∙ 12y ago
If the difference between the electronegativities of the atoms of a molecule is great, this molecule is very probable polar.
Wiki User
∙ 12y ago
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How to know if a substance is a polar or not?
First of all you have to draw the Lewis dot structure of the molecule. If the molecule is symmetrical, it's non-polar. If the molecule is non-symmetrical or asymmetrical, then the molecule is polar.
A molecule that has a positive end and a negative end is what type of molecule?
To my knowledge, it is a polar molecule. Hope this helps, let me know if I'm wrong :)
Why is it important to know the shape of the molecule or ion?
It can help identify whether or not the molecule or ion is polar as well as identify if there are any "ends" of the molecule which can be more easily involved in a reaction.
Is CH3NH2 soluble in water?
yes it is soluble in water as we know from the common principal of "like dissolves like" in this case water is a polar molecule as well as the molecule in question therefore the molecule you specified will infact dissolve in water
Can two polar molecules be held to each other by a hydrogen bond?
Sure can and all life on earth as we know it depends on one polar covalently bonded molecule doing just that. Water.
How you will know that a molecule is polar or non polar?
by checking its number of hydrogen atoms
Oil is a polar or non-polar molecule?
i dont know ask yo momma hehehhehe or your foot
How to know if a substance is a polar or not?
First of all you have to draw the Lewis dot structure of the molecule. If the molecule is symmetrical, it's non-polar. If the molecule is non-symmetrical or asymmetrical, then the molecule is polar.
How do you know HBr is polar?
There are two different atoms.So there is a electro negativity difference.
A molecule that has a positive end and a negative end is what type of molecule?
To my knowledge, it is a polar molecule. Hope this helps, let me know if I'm wrong :)
What are the effects of the uneven distribution of wealth?
Polar Molecule
What is the polarity of SF4Br2?
it has both polar bonds because F is more electronegative than Br so the electrons are shared unevenly, and it is a polar molecule because its square pyramidal geometry doesn't allow its bond dipole moments to cancel out.
Why is it important to know the shape of the molecule or ion?
It can help identify whether or not the molecule or ion is polar as well as identify if there are any "ends" of the molecule which can be more easily involved in a reaction.
Is water non-polar?
All heteroatomic molecules are polar it depends on the structure of overall molecule to know whether the whole molecule is polar or not, water is polar cuz dipole between Hydrogen and Oxygen and that between Oxygen and lone pair don't cancel each other.
Which of these best describes why the carbon dioxide molecule is not polar?
i Know its NOT Bond Formation resulsts in energy being used
Would a molecule with polar covalent bonds be soluble in water?
Yes, in chemistry polar molecules are soluble with other polar molecules. You know that water is polar because of it's structure. Two hydrogens are bonded the an oxygen. The oxygen has two lone pairs of electrons that cause the molecule to have a bent VSEPR structure. This creates a net dipole due to the high electronegativity of oxygen. Essentially, the oxygen is slightly negative and the hydrogens slightly positive. So, yes your polar molecule is soluble with water (also polar).
How do you-determine if a molecule is polar or non-polar?
Polar Bonds and Molecular ShapeA polar molecule is a molecule that has a net dipole moment due to its having unsymmetrical polar bonds. There are two factors that go into determining if a molecule is polar or not. To determine if a molecule (or ion) is polar or non-polar, you must determine both factors.The polarity of the individual bonds in the molecule.The shape or geometry of the molecule.First, to determine if a given individual bond is polar, you need to know the electronegativity of the two atoms involved in that bond. To find the electronegativities of all the elements, look at the Periodic Table (follow the link below this answer under Web Links).If the electronegativity of the two atoms has a difference of 0.3 or less, then the bond is non-polar. If the electronegativity difference is greater that 0.3 but less than 1.7, then the bond is polar. If the two values have a difference greater than 1.7, then the bond is ionic, which is just very very polar.Once you know which bonds in the molecule are polar and which are non-polar, you must use the shape of the molecule. You need the shape because two polar bonds, if oriented correctly can cancel each other out (like two equally strong people pulling in opposite directions on a rope -- nobody moves).The three possible outcomes:If all bonds are non-polar, then the whole molecule is non-polar regardless of its shape.If there is symmetry in the molecule so that the polarity of the bonds cancels out, then the molecule is non-polar. A common example of this is carbon dioxide, or CO2. The molecule is linear, and its Lewis dot structure is like this: O=C=O (this doesn't include two sets of lone pairs on each oxygen). The carbon-oxygen bond is a polar bond, but because they are exactly opposed to each other, the molecule is overall non-polar. Another example of this is CCl4, where each carbon-chlorine bond is polar, but the molecule is non-polar. Here, how they cancel out isn't as obvious, but they do. CCl4 is a tetrahedral molecule, and the 4 C-Cl polar bonds cancel each other out.If there are polar bonds but there is no symmetry such that they cancel each other out, the overall molecule is polar. Water is a typical example of this. The two O-H bonds are oriented in a V-shape, and so the don't cancel out. Similarly, CH3Cl is also polar. It is the same shape as CCl4 (see above), but now it doesn't have the same symmetry because there is only one C-Cl bond and the bonds don't cancel out anymore.
