まず、O13C9H36P5UXe2Na8CoFe4WCs2Pr2AsHgPdAu23Rh4Sg10He23BaRf3Po7 内の各原子の数を計算します。
O: 13, C: 9, H: 36, P: 5, U: 1, Xe: 2, Na: 8, Co: 1, Fe: 4, W: 1, Cs: 2, Pr: 2, As: 1, Hg: 1, Pd: 1, Au: 23, Rh: 4, Sg: 10, He: 23, Ba: 1, Rf: 3, Po: 7
次に、周期表の各元素の原子量を調べます。
O: 15.9994, C: 12.0107, H: 1.00794, P: 30.973762, U: 238.02891, Xe: 131.293, Na: 22.98976928, Co: 58.933195, Fe: 55.845, W: 183.84, Cs: 132.9054519, Pr: 140.90765, As: 74.9216, Hg: 200.59, Pd: 106.42, Au: 196.966569, Rh: 102.9055, Sg: 271.13347, He: 4.002602, Ba: 137.327, Rf: 265.1167, Po: 208.9824304
次に、原子数と原子量の積の合計を計算します。
モル質量 (O13C9H36P5UXe2Na8CoFe4WCs2Pr2AsHgPdAu23Rh4Sg10He23BaRf3Po7) = ∑ Counti * Weighti =
Count(O) * Weight(O) + Count(C) * Weight(C) + Count(H) * Weight(H) + Count(P) * Weight(P) + Count(U) * Weight(U) + Count(Xe) * Weight(Xe) + Count(Na) * Weight(Na) + Count(Co) * Weight(Co) + Count(Fe) * Weight(Fe) + Count(W) * Weight(W) + Count(Cs) * Weight(Cs) + Count(Pr) * Weight(Pr) + Count(As) * Weight(As) + Count(Hg) * Weight(Hg) + Count(Pd) * Weight(Pd) + Count(Au) * Weight(Au) + Count(Rh) * Weight(Rh) + Count(Sg) * Weight(Sg) + Count(He) * Weight(He) + Count(Ba) * Weight(Ba) + Count(Rf) * Weight(Rf) + Count(Po) * Weight(Po) =
13 * 15.9994 + 9 * 12.0107 + 36 * 1.00794 + 5 * 30.973762 + 1 * 238.02891 + 2 * 131.293 + 8 * 22.98976928 + 1 * 58.933195 + 4 * 55.845 + 1 * 183.84 + 2 * 132.9054519 + 2 * 140.90765 + 1 * 74.9216 + 1 * 200.59 + 1 * 106.42 + 23 * 196.966569 + 4 * 102.9055 + 10 * 271.13347 + 23 * 4.002602 + 1 * 137.327 + 3 * 265.1167 + 7 * 208.9824304 =
12728.2890 g/mol
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