Primeiro, calcule o número de cada átomo em CArKNHOClFPBrBAuAgUPuCaLaZnAcCoAlFeCuNiVLiHeBeNaXeIMoMgTcMnS:
C: 1, Ar: 1, K: 1, N: 1, H: 1, O: 1, Cl: 1, F: 1, P: 1, Br: 1, B: 1, Au: 1, Ag: 1, U: 1, Pu: 1, Ca: 1, La: 1, Zn: 1, Ac: 1, Co: 1, Al: 1, Fe: 1, Cu: 1, Ni: 1, V: 1, Li: 1, He: 1, Be: 1, Na: 1, Xe: 1, I: 1, Mo: 1, Mg: 1, Tc: 1, Mn: 1, S: 1
Em seguida, pesquise os pesos atômicos para cada elemento da tabela periódica :
C: 12.0107, Ar: 39.948, K: 39.0983, N: 14.0067, H: 1.00794, O: 15.9994, Cl: 35.453, F: 18.9984032, P: 30.973762, Br: 79.904, B: 10.811, Au: 196.966569, Ag: 107.8682, U: 238.02891, Pu: 238.0495599, Ca: 40.078, La: 138.90547, Zn: 65.38, Ac: 227.0277521, Co: 58.933195, Al: 26.9815386, Fe: 55.845, Cu: 63.546, Ni: 58.6934, V: 50.9415, Li: 6.941, He: 4.002602, Be: 9.012182, Na: 22.98976928, Xe: 131.293, I: 126.90447, Mo: 95.96, Mg: 24.305, Tc: 96.906365, Mn: 54.938045, S: 32.065
Agora, calcule a soma dos produtos do número de átomos pelo peso atômico:
Massa molar (CArKNHOClFPBrBAuAgUPuCaLaZnAcCoAlFeCuNiVLiHeBeNaXeIMoMgTcMnS) = ∑ Counti * Weighti =
Count(C) * Weight(C) + Count(Ar) * Weight(Ar) + Count(K) * Weight(K) + Count(N) * Weight(N) + Count(H) * Weight(H) + Count(O) * Weight(O) + Count(Cl) * Weight(Cl) + Count(F) * Weight(F) + Count(P) * Weight(P) + Count(Br) * Weight(Br) + Count(B) * Weight(B) + Count(Au) * Weight(Au) + Count(Ag) * Weight(Ag) + Count(U) * Weight(U) + Count(Pu) * Weight(Pu) + Count(Ca) * Weight(Ca) + Count(La) * Weight(La) + Count(Zn) * Weight(Zn) + Count(Ac) * Weight(Ac) + Count(Co) * Weight(Co) + Count(Al) * Weight(Al) + Count(Fe) * Weight(Fe) + Count(Cu) * Weight(Cu) + Count(Ni) * Weight(Ni) + Count(V) * Weight(V) + Count(Li) * Weight(Li) + Count(He) * Weight(He) + Count(Be) * Weight(Be) + Count(Na) * Weight(Na) + Count(Xe) * Weight(Xe) + Count(I) * Weight(I) + Count(Mo) * Weight(Mo) + Count(Mg) * Weight(Mg) + Count(Tc) * Weight(Tc) + Count(Mn) * Weight(Mn) + Count(S) * Weight(S) =
1 * 12.0107 + 1 * 39.948 + 1 * 39.0983 + 1 * 14.0067 + 1 * 1.00794 + 1 * 15.9994 + 1 * 35.453 + 1 * 18.9984032 + 1 * 30.973762 + 1 * 79.904 + 1 * 10.811 + 1 * 196.966569 + 1 * 107.8682 + 1 * 238.02891 + 1 * 238.0495599 + 1 * 40.078 + 1 * 138.90547 + 1 * 65.38 + 1 * 227.0277521 + 1 * 58.933195 + 1 * 26.9815386 + 1 * 55.845 + 1 * 63.546 + 1 * 58.6934 + 1 * 50.9415 + 1 * 6.941 + 1 * 4.002602 + 1 * 9.012182 + 1 * 22.98976928 + 1 * 131.293 + 1 * 126.90447 + 1 * 95.96 + 1 * 24.305 + 1 * 96.906365 + 1 * 54.938045 + 1 * 32.065 =
2470.7737 g/mol
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