EQUILIBRIUM-arjun - Equilibrium 1985 A At 25C the solubility product constant K sp for strontium sulfate SrSO 4 is 7.610-7 The solubility product

EQUILIBRIUM-arjun - Equilibrium 1985 A At 25C the...

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Equilibrium page 1 1985 A At 25ºC the solubility product constant, Ksp, for strontium sulfate, SrSO4, is 7.6×10-7. The solubility product constant for strontium fluoride, SrF2, is 7.9×10-10.(a)What is the molar solubility of SrSO4in pure water at 25ºC? (b)What is the molar solubility of SrF2in pure water at 25ºC? (c)An aqueous solution of Sr(NO3)2is added slowly to 1.0 litre of a well-stirred solution containing 0.020 mole F-and 0.10 mole SO42- at 25ºC. (You may assume that the added Sr(NO3)2solution does not materially affect the total volume of the system.)1.Which salt precipitates first?2.What is the concentration of strontium ion, Sr2+, in the solution when the first precipitate begins to form?(d)As more Sr(NO3)2is added to the mixture in (c) a second precipitate begins to form. At that stage, what percent of the anion of the first precipitate remains in solution? Answer:
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