まず、Li2H3C6FeAuHgMgO3CaRgMnGaZnPtIXeFr 内の各原子の数を計算します。
Li: 2, H: 3, C: 6, Fe: 1, Au: 1, Hg: 1, Mg: 1, O: 3, Ca: 1, Rg: 1, Mn: 1, Ga: 1, Zn: 1, Pt: 1, I: 1, Xe: 1, Fr: 1
次に、周期表の各元素の原子量を調べます。
Li: 6.941, H: 1.00794, C: 12.0107, Fe: 55.845, Au: 196.966569, Hg: 200.59, Mg: 24.305, O: 15.9994, Ca: 40.078, Rg: 280.16447, Mn: 54.938045, Ga: 69.723, Zn: 65.38, Pt: 195.084, I: 126.90447, Xe: 131.293, Fr: 223.0197359
次に、原子数と原子量の積の合計を計算します。
モル質量 (Li2H3C6FeAuHgMgO3CaRgMnGaZnPtIXeFr) = ∑ Counti * Weighti =
Count(Li) * Weight(Li) + Count(H) * Weight(H) + Count(C) * Weight(C) + Count(Fe) * Weight(Fe) + Count(Au) * Weight(Au) + Count(Hg) * Weight(Hg) + Count(Mg) * Weight(Mg) + Count(O) * Weight(O) + Count(Ca) * Weight(Ca) + Count(Rg) * Weight(Rg) + Count(Mn) * Weight(Mn) + Count(Ga) * Weight(Ga) + Count(Zn) * Weight(Zn) + Count(Pt) * Weight(Pt) + Count(I) * Weight(I) + Count(Xe) * Weight(Xe) + Count(Fr) * Weight(Fr) =
2 * 6.941 + 3 * 1.00794 + 6 * 12.0107 + 1 * 55.845 + 1 * 196.966569 + 1 * 200.59 + 1 * 24.305 + 3 * 15.9994 + 1 * 40.078 + 1 * 280.16447 + 1 * 54.938045 + 1 * 69.723 + 1 * 65.38 + 1 * 195.084 + 1 * 126.90447 + 1 * 131.293 + 1 * 223.0197359 =
1801.2595 g/mol
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