The solubility product of MCO₃ in water is 25 times as great as the solubility product of MC₂O₄ in water at the same temperature. A mixture of K₂CO₃ and K₂C₂O₄ totalling 2.042 x 10^-3 mole was dissolved in water. To this solution was added 2.80 x 10^-3 mole of MCl₂.

Water was then added to give a total volume of one liter. When precipitation was complete a mixture of MCO₃ and MC₂O₄ totalling 2.000 x 10^-3 mole had precipitated.

Calculate the solubility product for MC₂O₄.

*** M is the chemical symbol of an unknown metal.

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