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Relative Atomic, Isotopic, Molecular And Formula Masses

Yong Cheng Lai Englisch 5 Karten

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  1. 1Relative Isotopic Mass (RIM)mass of one atom of the isotope
    _______________
    1/12 the mass of a C-12 atom
  2. 2Isotopes of C-12 was chosen as standard because1) C-12 is abundant in nature.
    2) It can be easily identified in a mass spectrometer.
    3) easy to handle since it exists as a solid at r.t. and pressure.
  3. 3Relative atomic mass (Ar)average mass of an atom of the element
    ______________
    1/12 the mass of a C-12 atom
  4. 4Relative molecular mass (Mr)average mass of 1 molecule of the element/compound
    _________________
    1/12 of mass of one C-12 atom
  5. 5Relative formula mass (RFM)mass of 1 formula of ionic compound
    _____________________
    1/2 of mass of 1 atom of C-12

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Beschreibung
Flashcards on Relative Isotopic Mass (RIM), created by Yong Cheng Lai on 18/05/2016.
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Yong Cheng Lai
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