In the compound [Co (NH3)5 SO4] Br, what is the primary valency of cobalt?

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Solution

Dear Student,
The primary valency is the oxidation state of the compound
[Co(NH₃)₅SO₄] Br
The charge on co-ordination sphere is -1,
[Co(NH₃)₅SO₄]^-
x+(-1 $\times$ 5)+(-1)=-1
x= +5
So the primary valency of cobalt is +5
Regards!

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In the compound [Co (NH3)5 SO4] Br, what is the primary valency of cobalt?

Dear Student, The primary valency is the oxidation state of the compound [Co(NH3)5SO4] Br The charge on co-ordination sphere is -1, [Co(NH3)5SO4]- x+(-1×5)+(-1)=-1 x= +5 So the primary valency of cobalt is +5 Regards!

Dear Student,
The primary valency is the oxidation state of the compound
[Co(NH₃)₅SO₄] Br
The charge on co-ordination sphere is -1,
[Co(NH₃)₅SO₄]^-
x+(-1 $\times$ 5)+(-1)=-1
x= +5
So the primary valency of cobalt is +5
Regards!