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Because the electronegativity difference between aluminum and chlorine is not very high, despite the fact that Al is a metal and Cl is a non-metal. This means the compound will have high covalent character, and will do certain things chemically that molecular compounds do, like form molecules, and bond in an amount that isn't lowest possible terms.
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∙ 7y ago
Wiki User
∙ 13y agoAluminium is a small sized trivalent atom having high charge density so chlorine atoms can not remove electrons from Aluminium but they share the electrons and complete their own octets.
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Why does alcl3 exist as al2cl6 molecule n discuss shape of its molecule?
First, draw an AlCl3 molecule, in dot-structure. You will see that in the molecule, Aluminum has only 6 electrons, 3 of which are shared with the chlorine atoms. It needs 2 more electrons to become more stable (8 electrons in the outer shell is usually stable). Now look at the chlorine atom in the AlCl3 molecule.It has 8 electrons, and thus, it is somewhat "stable". If a Chlorine atom from ANOTHER AlCl3 molecule formed a dative bond with the Aluminum atom(a dative bond is a covalent bond where both shared electrons come from just one species. In this case, both electrons come from the chlorine atom), this Al atom would now have 8 electrons as well. That is why AlCl3 exists as a dimer- as Al2Cl6 . It's structure is shown in this picture.
What molecules are non polar?
NO, CO SO2or AlCl3
What kind of bond in AlCl3 have?
AlCl3 at high temperatres in the vapor phase is molcular, planar AlCl3. with polar covalent bonds. In the melt and at lower temperatures in the vapor phase it is dimeric, Al2Cl6 with two bridging Cl atoms ( Cl2AlCl2AlCl2), each aluminium atom is approximately surrounded by a tetrahedron of Cl atoms. in the solid the structure has each Al surrounded by 6 Cl atoms and the bonding is more ionic in nature. As the solid is heated just before it melts the electrical conductivity rises due to the presence of ions.
How many moles of HCI do you need to react with aluminum foil if you use 15 grams of acid?
0.2550 g AlC3 (1 mol/132 g) =0.001932 mol AlCl3 0.001932 mol AlCl3 (6.022 x 10^23 molecules AlCl3/1 mol AlCl3) = 1.163 x 10^21 1.163x10^21 molecules AlCl3 (3 mol Cl/1 mol AlCl3) =3.490x10^21 Cl ions 3.490x10^21 Cl ions (1 mol/6.022 x 10^23) =5.795x10^-3 moles Cl The formula to solve this problem appears above.
What is meant by anhydrous AlCl3?
anhydrous means without water and anhydrous AlCl3 means, AlCl3 is hydrated in water therefore anhydrous AlCl3 is used.
Is AlCl3 a covalent or ionic compound?
Solid AlCl3 is ionic. Liquid and gaseous AlCl3 is present as a covalent dimer, Al2Cl6. At high temperatures the dimer dissociates to form the planar covalent monomer AlCl3.
How many atoms are there in aluminum chloride?
Four or eight, depending on the state. It exists as AlCl3 or Al2Cl6.
Aluminium burns in chlorine to form aluminium chloride?
yes to produce aluminium chloride AlCl3 vapour which is Al2Cl6 . Aluminium(III) in crystalline AlCl3 are six coordinate, on melting or sublimation (at 150C) the molecule assume the molecular form Al2Cl6
What is the bond of AlCl3?
In the solid- ionic with 6 coordinate indiumIn the melt it is a dimer, Al2Cl6, with covalent bondsIn the gas phase at high temperatures a Trigonal Pyramidal monomer AlCl3
Why unhydrated alcl3 is covalent in nature but hydrated alcl3 becomes ionic in nature?
In the presence of H2O, Al2Cl6 dissociates into hydrated Al3+ and Cl- ions due to high heat of hydration of these ions
Which of the following molecules is non-polar CO SO2 NO AlCl3?
All are more or less polar molecules.
How many Al atoms and how many Cl atoms are in aluminum chloride?
The ratio in aluminum chloride is 1:3 aluminum to chloride ( AlCl3 or Al2Cl6 )
What is the chemical formula for Aluminum Chlorine?
(inorganic chemistry) AlCl3 or Al2Cl6 A deliquescent compound in the form of white to colorless hexagonal crystals; fumes in air and reacts explosively with water; used as a catalyst
Why does alcl3 exist as al2cl6 molecule n discuss shape of its molecule?
First, draw an AlCl3 molecule, in dot-structure. You will see that in the molecule, Aluminum has only 6 electrons, 3 of which are shared with the chlorine atoms. It needs 2 more electrons to become more stable (8 electrons in the outer shell is usually stable). Now look at the chlorine atom in the AlCl3 molecule.It has 8 electrons, and thus, it is somewhat "stable". If a Chlorine atom from ANOTHER AlCl3 molecule formed a dative bond with the Aluminum atom(a dative bond is a covalent bond where both shared electrons come from just one species. In this case, both electrons come from the chlorine atom), this Al atom would now have 8 electrons as well. That is why AlCl3 exists as a dimer- as Al2Cl6 . It's structure is shown in this picture.
Does AlCl3 have covalent bonds?
Yes, pure aluminium chloride has covalent bonds. It actually exists as a dimer Al2Cl6. However, it forms hydrated ions when it dissolves in water.
What molecules are non polar?
NO, CO SO2or AlCl3
How many molecules does alcl3 dissociate into?
It does NOT form molecules. When AlCl3 'breakdown ' it form the IONS Al^(3+) & 3 Cl^(-) AlCl3(s) IS a molecule.
