まず、H256He64Li38B25O16S8Zn4Xe2LrAtRnMdNoFmEsBkCmAm 内の各原子の数を計算します。
H: 256, He: 64, Li: 38, B: 25, O: 16, S: 8, Zn: 4, Xe: 2, Lr: 1, At: 1, Rn: 1, Md: 1, No: 1, Fm: 1, Es: 1, Bk: 1, Cm: 1, Am: 1
次に、周期表の各元素の原子量を調べます。
H: 1.00794, He: 4.002602, Li: 6.941, B: 10.811, O: 15.9994, S: 32.065, Zn: 65.38, Xe: 131.293, Lr: 262.10963, At: 209.987148, Rn: 210.990601, Md: 258.098431, No: 259.10103, Fm: 257.095105, Es: 252.08298, Bk: 247.070307, Cm: 243.0613891, Am: 241.0568291
次に、原子数と原子量の積の合計を計算します。
モル質量 (H256He64Li38B25O16S8Zn4Xe2LrAtRnMdNoFmEsBkCmAm) = ∑ Counti * Weighti =
Count(H) * Weight(H) + Count(He) * Weight(He) + Count(Li) * Weight(Li) + Count(B) * Weight(B) + Count(O) * Weight(O) + Count(S) * Weight(S) + Count(Zn) * Weight(Zn) + Count(Xe) * Weight(Xe) + Count(Lr) * Weight(Lr) + Count(At) * Weight(At) + Count(Rn) * Weight(Rn) + Count(Md) * Weight(Md) + Count(No) * Weight(No) + Count(Fm) * Weight(Fm) + Count(Es) * Weight(Es) + Count(Bk) * Weight(Bk) + Count(Cm) * Weight(Cm) + Count(Am) * Weight(Am) =
256 * 1.00794 + 64 * 4.002602 + 38 * 6.941 + 25 * 10.811 + 16 * 15.9994 + 8 * 32.065 + 4 * 65.38 + 2 * 131.293 + 1 * 262.10963 + 1 * 209.987148 + 1 * 210.990601 + 1 * 258.098431 + 1 * 259.10103 + 1 * 257.095105 + 1 * 252.08298 + 1 * 247.070307 + 1 * 243.0613891 + 1 * 241.0568291 =
4525.5020 g/mol
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