まず、CrMnFeCoNiCuZnAsSeBrKrSrMoCdIXeCsWHgPbU 内の各原子の数を計算します。
Cr: 1, Mn: 1, Fe: 1, Co: 1, Ni: 1, Cu: 1, Zn: 1, As: 1, Se: 1, Br: 1, Kr: 1, Sr: 1, Mo: 1, Cd: 1, I: 1, Xe: 1, Cs: 1, W: 1, Hg: 1, Pb: 1, U: 1
次に、周期表の各元素の原子量を調べます。
Cr: 51.9961, Mn: 54.938045, Fe: 55.845, Co: 58.933195, Ni: 58.6934, Cu: 63.546, Zn: 65.38, As: 74.9216, Se: 78.96, Br: 79.904, Kr: 83.798, Sr: 87.62, Mo: 95.96, Cd: 112.411, I: 126.90447, Xe: 131.293, Cs: 132.9054519, W: 183.84, Hg: 200.59, Pb: 207.2, U: 238.02891
次に、原子数と原子量の積の合計を計算します。
モル質量 (CrMnFeCoNiCuZnAsSeBrKrSrMoCdIXeCsWHgPbU) = ∑ Counti * Weighti =
Count(Cr) * Weight(Cr) + Count(Mn) * Weight(Mn) + Count(Fe) * Weight(Fe) + Count(Co) * Weight(Co) + Count(Ni) * Weight(Ni) + Count(Cu) * Weight(Cu) + Count(Zn) * Weight(Zn) + Count(As) * Weight(As) + Count(Se) * Weight(Se) + Count(Br) * Weight(Br) + Count(Kr) * Weight(Kr) + Count(Sr) * Weight(Sr) + Count(Mo) * Weight(Mo) + Count(Cd) * Weight(Cd) + Count(I) * Weight(I) + Count(Xe) * Weight(Xe) + Count(Cs) * Weight(Cs) + Count(W) * Weight(W) + Count(Hg) * Weight(Hg) + Count(Pb) * Weight(Pb) + Count(U) * Weight(U) =
1 * 51.9961 + 1 * 54.938045 + 1 * 55.845 + 1 * 58.933195 + 1 * 58.6934 + 1 * 63.546 + 1 * 65.38 + 1 * 74.9216 + 1 * 78.96 + 1 * 79.904 + 1 * 83.798 + 1 * 87.62 + 1 * 95.96 + 1 * 112.411 + 1 * 126.90447 + 1 * 131.293 + 1 * 132.9054519 + 1 * 183.84 + 1 * 200.59 + 1 * 207.2 + 1 * 238.02891 =
2243.6682 g/mol
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