Qualitative Analysis Lab Quiz (20pts) For the following indicate what ion is pre

Question

Qualitative Analysis Lab Quiz (20pts) For the following indicate what ion is present given the following results s A solution which contains only one of the following anions: O1I, S0, or CO,' is tested with various reagents and the following results are obetained Reagent Results 0.2M AgNO, precipitate 0.2M Fe(NO,h precipitate 0.2M Sr(NO,), no precipitate Which anion does the solution contain? is tested with 7. A solution which contains only one of the following cations: Mg", Pb', or NIL various reagents and the following results are obtained Reagent Results 0.2M Na SO, precipitate 0.2M Na S precipitate 0.2M NaNO, no precipitate Which cation does the solution contain? which is most soluble in water at 25 , lead (11) bronide, lend (m) chloride, lead (I) iodide, or lead (II) iodate? 8. Ksp lead bromide = 6.6E-6 Ksp lead chloride = 1.6E-5 Ksp lead iodide = 6.5E-9 Ksp lead iodate -3.69E-13 Answer

Explanation / Answer

6. hydroxide of Ag+ , Sr+2, Fe+2 soluble in water. So hydroxide anion present in the soution.

7. All ammonium sats are soluble in water So ammonium salts are present in the solution.

8 Higher Ksp(solubility product) salts are soluble in water.PbCl2 has higher Ksp (1.6*10-5)

9.

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