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    saturnblack's Avatar
    saturnblack Posts: 12, Reputation: 1
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    #1

    Jan 13, 2010, 04:21 PM
    The molarity?
    What is the molarity of 147 grams of H2SO4 (MW = 98)? Cannot remember how to do this.
    InfoJunkie4Life's Avatar
    InfoJunkie4Life Posts: 1,409, Reputation: 81
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    #2

    Jan 13, 2010, 10:09 PM

    Your question doesn't make much sense, molarity is concentration; you didn't tell us how much water it is mixed with. If you want how many moles, it's a different story.

    Molarity = moles per liter.

    Molar Mass = all the atomic weights added up in grams.



    H = 1
    O = 16
    S = 32

    (1 x 2) + 32 + (16 x 4) = 98

    (I see you got that far)



    If that were mixed with 1 liter of water, that would get you a 1.5 molar solution. If it were mixed with half of a liter (500mL) it would present you with a 3 molar solution...

    I hope this helps.
    saturnblack's Avatar
    saturnblack Posts: 12, Reputation: 1
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    #3

    Jan 16, 2010, 11:25 AM

    Thank you.
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