f.6 chem的問題

什麼是mass to change ratio (m/e) ??

2 個解答

評分
  • 1 十年前
    最愛解答

    It is using the equation : "mass ÷ charge "

    Usually, we use it to calculate the relative atomic mass (R.A.M.) of an atom/ element.

    Eg : a mass spectrum of chlorine gas is given and some peaks are found on

    the graph eg : 1 peak at 35 and 1 peak at 37 and the ratio of these peaks are given e.g. 3:1

    To calculate the RAM of Cl2

    = (35 x 3 +37 x1 ) / 4

    = 35.5 a.m.u.

    Hope that can help you

    資料來源: MY knowledge
  • 1 十年前

    mass to charge ratio (m/z) is physical property of molecule/ atom.

    "mass" is the atomic mass / molecular mass

    "charge " is the electronic charge on the atom / molecule

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