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Molar mass

  1. Oct 31, 2014 #1
    How molar mass and atomic number are interrelated?
    Give me a detailed explanation.
    How to find molecular mass and molar mass for molecules?
  2. jcsd
  3. Oct 31, 2014 #2


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    Staff: Mentor

    They aren't. You may be thinking of the atomic mass or weight, which is different from the atomic number.

    You will get better and more helpful answers here if you can tell us more about what you do and don't understand and what you've been able to figure out for yourself. Google for something like "molar molecular mass relationship", see what you find, come back with more specific questions and we'll be better able to help you.
  4. Oct 31, 2014 #3


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    Science Advisor

    Atomic weight (mass) and molecular weight are defined in terms of atomic mass units (1/12 of Carbon-12). Molar mass (mole) is the the mass in grams, using the number from atomic or molecular weight. Avogadro's number gives the relationship (number of atoms or molecules in a mole).
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