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

    Mar 12, 2009, 03:45 PM
    Grams in moles
    How many grams are in 5.66 mol of CaCO3
    Perito's Avatar
    Perito Posts: 3,139, Reputation: 150
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    #2

    Mar 12, 2009, 05:30 PM

    First, find the molecular weight of CaCO3. Do that by locating the atomic weight of oxygen, carbon, and oxygen. Multiply those numbers by the number of atoms in the molecule (as written). Then, add the values together to get the molecular weight. The molecular weight is expressed in grams / mole. If you have 5.66 moles of a substance then you can calculate the number of grams from the molecular weight.

    Note that . Substitute "x" = grams and "y" = "mole" and you can multiply the "units". The "mole" unit will cancel out and you're left with grams.
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