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AssignmentFiveKey - Take-Home Assignment#5 Key The...

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Take-Home Assignment #5 Key The intention of these problems is to provide additional experience in solving equilibrium problems by focusing on verifying assumptions and activity effects. Thermodynamic equilibrium constants (i.e. for μ = 0) for all reactions may be found in the Appendices to the textbook. 1. In class we examined a more rigorous solution for the solubility of AgCl in distilled water. In our original approach to the problem we only included the K sp expression. Based on the result of that calculation explain why the following species can be safely ignored: AgCl 2 , AgCl 3 2– , and AgCl 4 3– . After providing a written explanation, show by suitable calculations that this reasoning is correct. Note that the actual solubility of AgCl must include the contribution from AgCl (aq) . What is the actual solubility of AgCl in distilled water? To form the higher concentrations of Ag + , such as AgCl 2 - , there must be a relatively high concentration of free Cl - . If AgCl is the only source of Cl -
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