A)
1.
Calcular moles
C : 92.
3 g / 12 g / mol = 7.
69 mol
H : 7.
7 g / 1 g / mol = 7.
7 mol
2.
Dividir entre el menor de los resultados
C : 7.
69 mol / 7.
69 mol = 1
H : 7.
7 mol / 7.
69 mol = 1
3.
FE : CH
4.
Calcular Mm de la FE
C : 1 x 12 = 12 g / mol
H : 1 x 1 = 1 g / mol
`````````````````````````````````` Mm = 13 g / mol
5.
Calcular n = Mm compuesto / Mm FE
n = 104 g / mol / 13 g / mol = 8
6.
FM = (CH)₈ = C₈H₈
b)
1.
Calcular moles
C : 49.
5 g / 12 g / mol = 4.
125 mol
H : 5.
15 g / 1 g / mol = 5.
15 mol
N : 28.
9 g / 14 g / mol = 2.
064 mol
O : 16.
5 g / 16 g / mol = 1.
031 mol
2.
Dividir entre el menor de los resultados
C : 4.
125 mol / 1.
031 mol = 4
H : 5.
15 mol / 1.
031 mol = 5
N : 2.
064 mol / 1.
031 mol = 2
O : 1.
031 mol / 1.
031 mol = 1
3.
FE : C₄H₅N₂O₁
4.
Calcula Mm fe la FE
C : 4 x 12 = 48 g / mol
H : 5 x 1 = 5 g / mol
N : 2 x 14 = 28 g / mol
O : 1 x 16 = 16 g / mol
`````````````````````````````````` Mm = 97 g / mol
5.
Calcular n = Mm Compuesto / Mm FE
n = 195 g / mol / 97 g / mol = 2
6.
FM : (C₄H₅N₂O₁)₂ = C₈H₁₀N₄O₂
c)
1.
Calcular moles
C : 35.
5 g / 12 g / mol = 2.
958 mol
H : 4.
77 g / 1 g / mol = 4.
77 mol
O : 37.
85 g / 16 g / mol = 2.
365 mol
N : 8.
29 g / 14 g / mol = 0.
59 mol
Na : 13.
60 g / 23 g / mol = 0.
59 mol
2.
Dividir entre el menor de los resultados
C : 2.
958 mol / 0.
59 mol = 5
H : 4.
77 mol / 0.
59 mol = 8
O : 2.
365 mol / 0.
59 = 4
N : 0.
59 mol / 0.
59 mol = 1
Na : 0.
59 mol / 0.
59 mol = 1
3.
FE : C₅H₈O₄N₁Na₁
4.
Calcular la Mm de la FE
C : 5 x 12 = 60 g / mol
H : 8 x 1 = 8 g / mol
O : 4 x 16 = 64 g / mol
N : 1 x 14 = 14 g / mol
Na : 1 x 23 = 23 g / mol
```````````````````````````````` Mm = 169 g / mol
5.
Calcular n = Mm compuesto / Mm FE
n = 169 g / mol / 169 g / mol
n = 1
6.
FM : (C₅H₈O₄N₁Na₁)₁ = C₅H₈O₄NNa.