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-   -   3.01 molecules of compound B have a mass of 9g. Calculate molar mass. (https://www.askmehelpdesk.com/showthread.php?t=772006)

  • Oct 20, 2013, 11:00 AM
    Stlata
    3.01 molecules of compound B have a mass of 9g. Calculate molar mass.
    Calculate the molar mass of:
    3.01x10^23 molecules have a mass of 9g.

    I think I have to switch molecules into moles but I don't know if that is correct, and I don't know how. Once I get it into moles, I have to divide the mass by the number of moles.
  • Oct 21, 2013, 06:51 PM
    neodarwinian
    6.022 X 10^23
    ------------------------A helpful number in your situation.

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