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analytical chemistry

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Calculate the volume (mL) of 2.81 M magnesium phosphate solution require to prepare 43.20 mL of 2.1000 %w/v solution of Mg3(PO4)2 . [Answer in 3 decimal places].

  • analytical chemistry -

    I would convert 2.10% w/v Mg3(PO4)2 to molarity first.
    2.10/molar mass Mg3(PO4)2 then
    M Mg3(PO4)2 = moles/0.100L = ?

    Then use the dilution formula of
    mL1 x M1 = mL2 x M2
    You may be familiar with
    c1v1 = c2v2

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