Question: Calculate the % relative error in solubility by using concentrations instead of activities for the following compounds in 0.0500 M KNO3 using the thermodynamic solubility

Calculate the % relative error in solubility by using concentrations instead of activities for the following compounds in 0.0500 M KNO3 using the thermodynamic solubility products listed in Appendix 2.
(a) CuCl (aCu+ = 0.3 nm)
(b) Fe (OH)3
(c) Ag3AsO4 (aAsO4 3- = 0.4 nm)

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