まず、H2OAsO4CO2NH4OHCO3Ag2Pb6Gd12Yb7Lu3Os4Ta2 内の各原子の数を計算します。
H: 7, O: 11, As: 1, C: 2, N: 1, Ag: 2, Pb: 6, Gd: 12, Yb: 7, Lu: 3, Os: 4, Ta: 2
次に、周期表の各元素の原子量を調べます。
H: 1.00794, O: 15.9994, As: 74.9216, C: 12.0107, N: 14.0067, Ag: 107.8682, Pb: 207.2, Gd: 157.25, Yb: 173.054, Lu: 174.9668, Os: 190.23, Ta: 180.94788
次に、原子数と原子量の積の合計を計算します。
モル質量 (H2OAsO4CO2NH4OHCO3Ag2Pb6Gd12Yb7Lu3Os4Ta2) = ∑ Counti * Weighti =
Count(H) * Weight(H) + Count(O) * Weight(O) + Count(As) * Weight(As) + Count(C) * Weight(C) + Count(N) * Weight(N) + Count(Ag) * Weight(Ag) + Count(Pb) * Weight(Pb) + Count(Gd) * Weight(Gd) + Count(Yb) * Weight(Yb) + Count(Lu) * Weight(Lu) + Count(Os) * Weight(Os) + Count(Ta) * Weight(Ta) =
7 * 1.00794 + 11 * 15.9994 + 1 * 74.9216 + 2 * 12.0107 + 1 * 14.0067 + 2 * 107.8682 + 6 * 207.2 + 12 * 157.25 + 7 * 173.054 + 3 * 174.9668 + 4 * 190.23 + 2 * 180.94788 =
6501.0292 g/mol
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