まず、HOFeCrLiBeKCaScTiCPSeICoNiCuBrGaLaCePr 内の各原子の数を計算します。
H: 1, O: 1, Fe: 1, Cr: 1, Li: 1, Be: 1, K: 1, Ca: 1, Sc: 1, Ti: 1, C: 1, P: 1, Se: 1, I: 1, Co: 1, Ni: 1, Cu: 1, Br: 1, Ga: 1, La: 1, Ce: 1, Pr: 1
次に、周期表の各元素の原子量を調べます。
H: 1.00794, O: 15.9994, Fe: 55.845, Cr: 51.9961, Li: 6.941, Be: 9.012182, K: 39.0983, Ca: 40.078, Sc: 44.955912, Ti: 47.867, C: 12.0107, P: 30.973762, Se: 78.96, I: 126.90447, Co: 58.933195, Ni: 58.6934, Cu: 63.546, Br: 79.904, Ga: 69.723, La: 138.90547, Ce: 140.116, Pr: 140.90765
次に、原子数と原子量の積の合計を計算します。
モル質量 (HOFeCrLiBeKCaScTiCPSeICoNiCuBrGaLaCePr) = ∑ Counti * Weighti =
Count(H) * Weight(H) + Count(O) * Weight(O) + Count(Fe) * Weight(Fe) + Count(Cr) * Weight(Cr) + Count(Li) * Weight(Li) + Count(Be) * Weight(Be) + Count(K) * Weight(K) + Count(Ca) * Weight(Ca) + Count(Sc) * Weight(Sc) + Count(Ti) * Weight(Ti) + Count(C) * Weight(C) + Count(P) * Weight(P) + Count(Se) * Weight(Se) + Count(I) * Weight(I) + Count(Co) * Weight(Co) + Count(Ni) * Weight(Ni) + Count(Cu) * Weight(Cu) + Count(Br) * Weight(Br) + Count(Ga) * Weight(Ga) + Count(La) * Weight(La) + Count(Ce) * Weight(Ce) + Count(Pr) * Weight(Pr) =
1 * 1.00794 + 1 * 15.9994 + 1 * 55.845 + 1 * 51.9961 + 1 * 6.941 + 1 * 9.012182 + 1 * 39.0983 + 1 * 40.078 + 1 * 44.955912 + 1 * 47.867 + 1 * 12.0107 + 1 * 30.973762 + 1 * 78.96 + 1 * 126.90447 + 1 * 58.933195 + 1 * 58.6934 + 1 * 63.546 + 1 * 79.904 + 1 * 69.723 + 1 * 138.90547 + 1 * 140.116 + 1 * 140.90765 =
1312.3785 g/mol
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