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    oxalate concentration for calcium oxalate to precipitate

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    7. The Ksp for calcium oxalate (CaC2O4) is 2.7 x 109. If the free Ca+2 concentration were 1mM, what would need to be the oxalate concentration for calcium oxalate to precipitate?

    8. What would be the voltage of a Zn|Zn+2||Cu+2|Cu cell, once the concentration of Zn+2 went to 1.5M and the CU+2 concentration diminished to 0.5M?

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    7. The Ksp for calcium oxalate (CaC2O4) is 2.7 x 109. If the free Ca+2 concentration were 1mM, what would need to be the oxalate concentration for calcium oxalate to precipitate?
    CaC2O4¬ -- Ca2+ + (C2O4)2-
    If the reaction quotient is greater than the Ksp, precipitation occurs.

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    Solution Summary

    It calculates the oxalate concentration for calcium oxalate to precipitate. It also calculates the voltage of the electrochemical cell. The solution is detailed and well presented.

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