how to explain and verify that sulfate ions has to negative charges
Dear Student,
Sulfate ion is formed due to the sulfur atom has an hypervalency, the S=O bonds are formed by a sigma and π bonds. It is formed by the one sulphur and four oxygen atom. The sulfate ion formula is SO42- and the molar mass is 96.06 g mol-1. This salt is formed by one sulfate center to which 4 atoms of oxygen are attached, 2 of these atoms are forming S=O bonds and the other two are S-O- bonds. These last oxygen atoms are the responsible for the negative charge (-2) of the anion.
The geometry of the anion is tetrahedral.
As sulphur is less electronegative than oxygen it bears a positive charge (+6) and oxygen has negative charge (-2)
SO4 = +6 + 4 (-2) = -2.
So totally its having -2 charge.
Lewis structure of SO42- ion (sulphate)
Regards
Sulfate ion is formed due to the sulfur atom has an hypervalency, the S=O bonds are formed by a sigma and π bonds. It is formed by the one sulphur and four oxygen atom. The sulfate ion formula is SO42- and the molar mass is 96.06 g mol-1. This salt is formed by one sulfate center to which 4 atoms of oxygen are attached, 2 of these atoms are forming S=O bonds and the other two are S-O- bonds. These last oxygen atoms are the responsible for the negative charge (-2) of the anion.
The geometry of the anion is tetrahedral.
As sulphur is less electronegative than oxygen it bears a positive charge (+6) and oxygen has negative charge (-2)
SO4 = +6 + 4 (-2) = -2.
So totally its having -2 charge.
Lewis structure of SO42- ion (sulphate)Regards