まず、YBa2N3AgNa34Cl30B78Cu3C9H234O7 内の各原子の数を計算します。
Y: 1, Ba: 2, N: 3, Ag: 1, Na: 34, Cl: 30, B: 78, Cu: 3, C: 9, H: 234, O: 7
次に、周期表の各元素の原子量を調べます。
Y: 88.90585, Ba: 137.327, N: 14.0067, Ag: 107.8682, Na: 22.98976928, Cl: 35.453, B: 10.811, Cu: 63.546, C: 12.0107, H: 1.00794, O: 15.9994
次に、原子数と原子量の積の合計を計算します。
モル質量 (YBa2N3AgNa34Cl30B78Cu3C9H234O7) = ∑ Counti * Weighti =
Count(Y) * Weight(Y) + Count(Ba) * Weight(Ba) + Count(N) * Weight(N) + Count(Ag) * Weight(Ag) + Count(Na) * Weight(Na) + Count(Cl) * Weight(Cl) + Count(B) * Weight(B) + Count(Cu) * Weight(Cu) + Count(C) * Weight(C) + Count(H) * Weight(H) + Count(O) * Weight(O) =
1 * 88.90585 + 2 * 137.327 + 3 * 14.0067 + 1 * 107.8682 + 34 * 22.98976928 + 30 * 35.453 + 78 * 10.811 + 3 * 63.546 + 9 * 12.0107 + 234 * 1.00794 + 7 * 15.9994 =
3848.5364 g/mol
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