An unknown expound MX_2 made up of cation M and anion X is present as a saturate

Question

An unknown expound MX_2 made up of cation M and anion X is present as a saturated solution in water. If the molar concentrations at equilibrium are [M] = 0.00580 M and [X] = 0.01065 M, what is the numeric value of K_sp for MX_2? 9. You prepare a solution that has 1.04 times 10^-4 M Sr^2+ and 6.25 times 10^-3 M CO_3^2-. Will SrCO_3 (K_sp = 1.6 times 10^-9) precipitate from this solution? 10. What will be the concentration of free Cu^2+ ions in a solution that is initially prepared to be 0.200 M Cu^2+ and 2.80 M CN^1. 11. What will be the concentration of free Zn^2+ ions in a solulion that is initially prepared to be 0.180 M Zn^2+ and 5.00 M NH_3.

Explanation / Answer

8.

MX2 <-> M+2 + 2X-

Ksp = [M+2][X-]^2

Ksp = (0.0058)(0.01065)^2

Ksp = 6.57*10^-7

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