a solution contains Cr3+ and Mg2+. the addition of 1.00 L of 1.54 M NaF solution is required to cause the complete preci

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answerhappygod
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a solution contains Cr3+ and Mg2+. the addition of 1.00 L of 1.54 M NaF solution is required to cause the complete preci

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a solution contains Cr3+ and Mg2+. the addition of 1.00 L of 1.54 M NaF solution is required to cause the complete precipitation if these ions as CrF3(s) and MgF2(s). the total mass of the precipitate is 49.9 g. find the mass lf Cr3+ in the original solution.
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