まず、Mg7O5Al7Ge3I7P8Be6F7C8Mn7H6He8Li9B5NI6Na4Ar7As1CS7SN8Ag2Au8 内の各原子の数を計算します。
Mg: 7, O: 5, Al: 7, Ge: 3, I: 13, P: 8, Be: 6, F: 7, C: 9, Mn: 7, H: 6, He: 8, Li: 9, B: 5, N: 9, Na: 4, Ar: 7, As: 1, S: 8, Ag: 2, Au: 8
次に、周期表の各元素の原子量を調べます。
Mg: 24.305, O: 15.9994, Al: 26.9815386, Ge: 72.64, I: 126.90447, P: 30.973762, Be: 9.012182, F: 18.9984032, C: 12.0107, Mn: 54.938045, H: 1.00794, He: 4.002602, Li: 6.941, B: 10.811, N: 14.0067, Na: 22.98976928, Ar: 39.948, As: 74.9216, S: 32.065, Ag: 107.8682, Au: 196.966569
次に、原子数と原子量の積の合計を計算します。
モル質量 (Mg7O5Al7Ge3I7P8Be6F7C8Mn7H6He8Li9B5NI6Na4Ar7As1CS7SN8Ag2Au8) = ∑ Counti * Weighti =
Count(Mg) * Weight(Mg) + Count(O) * Weight(O) + Count(Al) * Weight(Al) + Count(Ge) * Weight(Ge) + Count(I) * Weight(I) + Count(P) * Weight(P) + Count(Be) * Weight(Be) + Count(F) * Weight(F) + Count(C) * Weight(C) + Count(Mn) * Weight(Mn) + Count(H) * Weight(H) + Count(He) * Weight(He) + Count(Li) * Weight(Li) + Count(B) * Weight(B) + Count(N) * Weight(N) + Count(Na) * Weight(Na) + Count(Ar) * Weight(Ar) + Count(As) * Weight(As) + Count(S) * Weight(S) + Count(Ag) * Weight(Ag) + Count(Au) * Weight(Au) =
7 * 24.305 + 5 * 15.9994 + 7 * 26.9815386 + 3 * 72.64 + 13 * 126.90447 + 8 * 30.973762 + 6 * 9.012182 + 7 * 18.9984032 + 9 * 12.0107 + 7 * 54.938045 + 6 * 1.00794 + 8 * 4.002602 + 9 * 6.941 + 5 * 10.811 + 9 * 14.0067 + 4 * 22.98976928 + 7 * 39.948 + 1 * 74.9216 + 8 * 32.065 + 2 * 107.8682 + 8 * 196.966569 =
6009.3539 g/mol
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