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Chemistry PLEASE HELP!

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When 0.042 moles of aluminum sulfate are
dissolved in enough water to make 763
milliliters of solution, what is the molarity of sulfate ions?
Answer in units of M.

  • Chemistry PLEASE HELP! -

    I wonder what is going on here? this is incredibly easy

    Moles sulfate ions in Al2(SO4)3
    Molarity= molessulfateions/liters of solution
    = 3*.042/.763 moles/liter

  • Chemistry -

    12.4

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