Primeiro, calcule o número de cada átomo em CHClFONCoAsFePtSbSnAuAgHgCuWCsNaSSiBrILiMgPAlMnSrBaRaTcNbYZr:
C: 1, H: 1, Cl: 1, F: 1, O: 1, N: 1, Co: 1, As: 1, Fe: 1, Pt: 1, Sb: 1, Sn: 1, Au: 1, Ag: 1, Hg: 1, Cu: 1, W: 1, Cs: 1, Na: 1, S: 1, Si: 1, Br: 1, I: 1, Li: 1, Mg: 1, P: 1, Al: 1, Mn: 1, Sr: 1, Ba: 1, Ra: 1, Tc: 1, Nb: 1, Y: 1, Zr: 1
Em seguida, pesquise os pesos atômicos para cada elemento da tabela periódica :
C: 12.0107, H: 1.00794, Cl: 35.453, F: 18.9984032, O: 15.9994, N: 14.0067, Co: 58.933195, As: 74.9216, Fe: 55.845, Pt: 195.084, Sb: 121.76, Sn: 118.71, Au: 196.966569, Ag: 107.8682, Hg: 200.59, Cu: 63.546, W: 183.84, Cs: 132.9054519, Na: 22.98976928, S: 32.065, Si: 28.0855, Br: 79.904, I: 126.90447, Li: 6.941, Mg: 24.305, P: 30.973762, Al: 26.9815386, Mn: 54.938045, Sr: 87.62, Ba: 137.327, Ra: 226.0254098, Tc: 96.906365, Nb: 92.90638, Y: 88.90585, Zr: 91.224
Agora, calcule a soma dos produtos do número de átomos pelo peso atômico:
Massa molar (CHClFONCoAsFePtSbSnAuAgHgCuWCsNaSSiBrILiMgPAlMnSrBaRaTcNbYZr) = ∑ Counti * Weighti =
Count(C) * Weight(C) + Count(H) * Weight(H) + Count(Cl) * Weight(Cl) + Count(F) * Weight(F) + Count(O) * Weight(O) + Count(N) * Weight(N) + Count(Co) * Weight(Co) + Count(As) * Weight(As) + Count(Fe) * Weight(Fe) + Count(Pt) * Weight(Pt) + Count(Sb) * Weight(Sb) + Count(Sn) * Weight(Sn) + Count(Au) * Weight(Au) + Count(Ag) * Weight(Ag) + Count(Hg) * Weight(Hg) + Count(Cu) * Weight(Cu) + Count(W) * Weight(W) + Count(Cs) * Weight(Cs) + Count(Na) * Weight(Na) + Count(S) * Weight(S) + Count(Si) * Weight(Si) + Count(Br) * Weight(Br) + Count(I) * Weight(I) + Count(Li) * Weight(Li) + Count(Mg) * Weight(Mg) + Count(P) * Weight(P) + Count(Al) * Weight(Al) + Count(Mn) * Weight(Mn) + Count(Sr) * Weight(Sr) + Count(Ba) * Weight(Ba) + Count(Ra) * Weight(Ra) + Count(Tc) * Weight(Tc) + Count(Nb) * Weight(Nb) + Count(Y) * Weight(Y) + Count(Zr) * Weight(Zr) =
1 * 12.0107 + 1 * 1.00794 + 1 * 35.453 + 1 * 18.9984032 + 1 * 15.9994 + 1 * 14.0067 + 1 * 58.933195 + 1 * 74.9216 + 1 * 55.845 + 1 * 195.084 + 1 * 121.76 + 1 * 118.71 + 1 * 196.966569 + 1 * 107.8682 + 1 * 200.59 + 1 * 63.546 + 1 * 183.84 + 1 * 132.9054519 + 1 * 22.98976928 + 1 * 32.065 + 1 * 28.0855 + 1 * 79.904 + 1 * 126.90447 + 1 * 6.941 + 1 * 24.305 + 1 * 30.973762 + 1 * 26.9815386 + 1 * 54.938045 + 1 * 87.62 + 1 * 137.327 + 1 * 226.0254098 + 1 * 96.906365 + 1 * 92.90638 + 1 * 88.90585 + 1 * 91.224 =
2863.4492 g/mol
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