Write equilibrium expressions, mass balance and charge balance equations for a system that is a mixture of ZnS and NH3. The relevant equilibria are the dissolution and ionization of ZnS, acid dissociation equilibria for NH3 and H₂S and the complexation of Zn²+ and NH3 according to the below reactions: Zn²+ + NH3 Zn(NH3)²+ Zn²+ + 2 NH3 = Zn(NH3)2²+ Zn²+ + 3 NH3 = Zn(NH3)3²+ Zn²+ + 4 NH3 = Zn(NH3)4²+ Make a plot of the solubility of ZnS as a function of the [Bonus analytical concentration of NH3 with reasonable assumptions;

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Write equilibrium expressions, mass balance and charge balance
equations for a system that is a mixture of ZnS and NH3. The relevant equilibria are the dissolution
and ionization of ZnS, acid dissociation equilibria for NH3 and H₂S and the complexation of Zn²+ and
NH3 according to the below reactions:
Zn²+ + NH3
Zn²+ + 2 NH3
Zn²+ + 3 NH3
Zn²+ + 4 NH3
Make a plot of the solubility of ZnS as a function of the
Zn(NH3)²+
Zn(NH3)2²+
Zn(NH3)3²+
Zn(NH3)4²+
[Bonus
analytical concentration of NH3 with reasonable assumptions;
Transcribed Image Text:Write equilibrium expressions, mass balance and charge balance equations for a system that is a mixture of ZnS and NH3. The relevant equilibria are the dissolution and ionization of ZnS, acid dissociation equilibria for NH3 and H₂S and the complexation of Zn²+ and NH3 according to the below reactions: Zn²+ + NH3 Zn²+ + 2 NH3 Zn²+ + 3 NH3 Zn²+ + 4 NH3 Make a plot of the solubility of ZnS as a function of the Zn(NH3)²+ Zn(NH3)2²+ Zn(NH3)3²+ Zn(NH3)4²+ [Bonus analytical concentration of NH3 with reasonable assumptions;
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