Answer to Question #56430 in Inorganic Chemistry for silvia

Question #56430
Silver chloride has Ksp=1.6x10^-10 and silver cheomate has Ksp=9.0x10^-12. We have 1.00 liter of a solution contains both nacl(0.10M) and Na2cro4(0.10M) solid AgNo3 is added slowly and the solution is stirred well.
a) which precipitate first Agcl or AgCro4?
B)what are the concentration of [Ag^+],[Cl-] and [CrO4^2-] at the point when the second salt just begins to precipitate?
C) is the method of selective precipitatation a good one for separating the anions in the solution?[hint calculate the percent of the fist ion (to precipitate) remaining in solution at the point the second anion begins to precipitate,in part (b) 99.5+% removed indicates good seperation!]
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