Find the number of millimoles of the indicated species in 64mg of P2O5.?

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  • 2 months ago

    molar mass P2O5 = 142 g/mol = 142 mg/mmole

    64 mg x 1 mmole/142 mg = 0.45 mmoles (2 significant figures)

  • ?
    Lv 7
    2 months ago

    64 / 283.9  =  0.22543148996 mmol  << round for sig figs

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