QUESTION 29 MgCl2 are added dropwise to a 1.2 M NaF solution. The minimun concentration of MgCl2 needed to to initiate a precipitate of magnesium fluoride is x 109 M. [Ksp(MBF2) = 6.9 x 10-91 MGF2(s) Mg2*(aq) + 2F(aq)

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