まず、Fe87496Si42707Al4532Mg198S75Ca107Mn1692P98K1146Na162Ti113V10Cu13O226841 内の各原子の数を計算します。
Fe: 87496, Si: 42707, Al: 4532, Mg: 198, S: 75, Ca: 107, Mn: 1692, P: 98, K: 1146, Na: 162, Ti: 113, V: 10, Cu: 13, O: 226841
次に、周期表の各元素の原子量を調べます。
Fe: 55.845, Si: 28.0855, Al: 26.9815386, Mg: 24.305, S: 32.065, Ca: 40.078, Mn: 54.938045, P: 30.973762, K: 39.0983, Na: 22.98976928, Ti: 47.867, V: 50.9415, Cu: 63.546, 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 (Fe87496Si42707Al4532Mg198S75Ca107Mn1692P98K1146Na162Ti113V10Cu13O226841) = ∑ Counti * Weighti =
Count(Fe) * Weight(Fe) + Count(Si) * Weight(Si) + Count(Al) * Weight(Al) + Count(Mg) * Weight(Mg) + Count(S) * Weight(S) + Count(Ca) * Weight(Ca) + Count(Mn) * Weight(Mn) + Count(P) * Weight(P) + Count(K) * Weight(K) + Count(Na) * Weight(Na) + Count(Ti) * Weight(Ti) + Count(V) * Weight(V) + Count(Cu) * Weight(Cu) + Count(O) * Weight(O) =
87496 * 55.845 + 42707 * 28.0855 + 4532 * 26.9815386 + 198 * 24.305 + 75 * 32.065 + 107 * 40.078 + 1692 * 54.938045 + 98 * 30.973762 + 1146 * 39.0983 + 162 * 22.98976928 + 113 * 47.867 + 10 * 50.9415 + 13 * 63.546 + 226841 * 15.9994 =
10000033.4871 g/mol
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