まず、MgOHPbCuRhPdKrRnZnYZrAsCaKLiBeB 内の各原子の数を計算します。
Mg: 1, O: 1, H: 1, Pb: 1, Cu: 1, Rh: 1, Pd: 1, Kr: 1, Rn: 1, Zn: 1, Y: 1, Zr: 1, As: 1, Ca: 1, K: 1, Li: 1, Be: 1, B: 1
次に、周期表の各元素の原子量を調べます。
Mg: 24.305, O: 15.9994, H: 1.00794, Pb: 207.2, Cu: 63.546, Rh: 102.9055, Pd: 106.42, Kr: 83.798, Rn: 210.990601, Zn: 65.38, Y: 88.90585, Zr: 91.224, As: 74.9216, Ca: 40.078, K: 39.0983, Li: 6.941, Be: 9.012182, B: 10.811
次に、原子数と原子量の積の合計を計算します。
モル質量 (MgOHPbCuRhPdKrRnZnYZrAsCaKLiBeB) = ∑ Counti * Weighti =
Count(Mg) * Weight(Mg) + Count(O) * Weight(O) + Count(H) * Weight(H) + Count(Pb) * Weight(Pb) + Count(Cu) * Weight(Cu) + Count(Rh) * Weight(Rh) + Count(Pd) * Weight(Pd) + Count(Kr) * Weight(Kr) + Count(Rn) * Weight(Rn) + Count(Zn) * Weight(Zn) + Count(Y) * Weight(Y) + Count(Zr) * Weight(Zr) + Count(As) * Weight(As) + Count(Ca) * Weight(Ca) + Count(K) * Weight(K) + Count(Li) * Weight(Li) + Count(Be) * Weight(Be) + Count(B) * Weight(B) =
1 * 24.305 + 1 * 15.9994 + 1 * 1.00794 + 1 * 207.2 + 1 * 63.546 + 1 * 102.9055 + 1 * 106.42 + 1 * 83.798 + 1 * 210.990601 + 1 * 65.38 + 1 * 88.90585 + 1 * 91.224 + 1 * 74.9216 + 1 * 40.078 + 1 * 39.0983 + 1 * 6.941 + 1 * 9.012182 + 1 * 10.811 =
1242.5444 g/mol
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