まず、H82He81Li80Be8B7C6N5O4F3Ne2Na10W3F4Ra3W3D4Ge4Ga5Mg6Al6Si4 内の各原子の数を計算します。
H: 82, He: 81, Li: 80, Be: 8, B: 7, C: 6, N: 5, O: 4, F: 7, Ne: 2, Na: 10, W: 6, Ra: 3, Ge: 4, Ga: 5, Mg: 6, Al: 6, Si: 4, D: 4
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, Be: 9.012182, B: 10.811, C: 12.0107, N: 14.0067, O: 15.9994, F: 18.9984032, Ne: 20.1797, Na: 22.98976928, W: 183.84, Ra: 226.0254098, Ge: 72.64, Ga: 69.723, Mg: 24.305, Al: 26.9815386, Si: 28.0855, D: 2.0141017778
次に、原子数と原子量の積の合計を計算します。
モル質量 (H82He81Li80Be8B7C6N5O4F3Ne2Na10W3F4Ra3W3D4Ge4Ga5Mg6Al6Si4) = ∑ Counti * Weighti =
Count(H) * Weight(H) + Count(He) * Weight(He) + Count(Li) * Weight(Li) + Count(Be) * Weight(Be) + Count(B) * Weight(B) + Count(C) * Weight(C) + Count(N) * Weight(N) + Count(O) * Weight(O) + Count(F) * Weight(F) + Count(Ne) * Weight(Ne) + Count(Na) * Weight(Na) + Count(W) * Weight(W) + Count(Ra) * Weight(Ra) + Count(Ge) * Weight(Ge) + Count(Ga) * Weight(Ga) + Count(Mg) * Weight(Mg) + Count(Al) * Weight(Al) + Count(Si) * Weight(Si) + Count(D) * Weight(D) =
82 * 1.00794 + 81 * 4.002602 + 80 * 6.941 + 8 * 9.012182 + 7 * 10.811 + 6 * 12.0107 + 5 * 14.0067 + 4 * 15.9994 + 7 * 18.9984032 + 2 * 20.1797 + 10 * 22.98976928 + 6 * 183.84 + 3 * 226.0254098 + 4 * 72.64 + 5 * 69.723 + 6 * 24.305 + 6 * 26.9815386 + 4 * 28.0855 + 4 * 2.0141017778 =
4567.6664 g/mol
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