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26 November, 11:56

Calculate the mass percent composition of lithium in Li3PO4 to four significant figures. Express your answer as a percent.

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  1. 26 November, 15:46
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    Li₃PO₄ has 18 % of Li

    Explanation:

    First of all we determine the molar mass of Lithium phosphate

    Molar mass: 115.79 g / mol

    1 mol of lithium phosphate has:

    3 moles of Li → 20.82g

    The mass percent composition of lithium will be:

    (Mass of Li / Total mass). 100 → (20.82 g / 115.79 g). 100 = 18 %
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