How does one compute for Ksp and Kb values?
2.) Cu[2+] + OH[-] ---> Cu(OH)2= What is its Kb? What is the formula?
Answer:
Cu(OH)2 is a insoluble salt since Ksp = 2.2 x10^-20
Cu(OH)2 (s) <-----> Cu2+ + 2OH-
2.2 x10^-20 = [Cu2+] [ OH-]^2
Cu(OH)2 has not Kb but its solubility can be affected by pH
the balanced equationis
Cu[2+]+4NH3[+]-->Cu[NH3]4[2+]
you need the concentration of the reactants (left hand side) and the products (right hand side)
you take the concentration of the products to the coefficient as a power and divide by the concentration of the reactants to the coefficient as a power
Ksp is the relationship of the molecule and its solubility in aqueous solution
the Ksp equation is Ksp=[Cu(NH3)4]2+/([Cu][NH3]^4)
Cu[2+]+2OH[-]--->Cu(OH)2
same as above
Kb is the relationship for the compound to actas a base in aqueous solution
Kb=[Cu(OH)2]/([Cu][OH]^2)
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