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    bianca16's Avatar
    bianca16 Posts: 1, Reputation: 1
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    #1

    Jan 7, 2010, 04:02 PM
    30 grams of H3PO4
    I need help finding the moles in 30 grams of H3po4
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Jan 7, 2010, 11:02 PM

    1 mole of phosphoric acid has a mass equal to its relative mass, in grams, or (1+1+1+31+16+16+16+16) = 98 g.

    Use proportions to find the number of moles in 30 g.
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