Ejercicios - Balanceo por método algebraico
Enviado por Juan Fernando Avila Carpio • 30 de Enero de 2022 • Tareas • 400 Palabras (2 Páginas) • 196 Visitas
Balancear P2S2 + HNO3 + H2O H2SO4 + H3PO4 + NO (método algebraico)[pic 1]
3P2S2 | + | 40HNO3 | + | 4H2O | [pic 2] | 15H2SO4 | + | 6H3PO4 | + | 40NO |
A | B | C | D | E | F |
P: 2A = E
S: 5A = D
H: B + 2C = 2D + 3E
N: B = F
O: 3B + C = 4D + 4E + F
A = 2 E = 4 D = 10 C = 3/8 B = 80/3 F = 80/3
2A = E
2(2) = E
4 = E
5A = D B + 2C = 2D + 3E
5(2) = D B + 2(3/8) = 2(10) + 3(4)
10 = D B + 16/3 = 20 + 12
3(B + 16/3 = 20 + 12)
B + 2C = 2D + 3E 3B + 16 = 60 + 36
B + 2C = 20 + 12 3B= 96 - 16
B + 2C = 32 B = 80/3
3B + C = 4D + 4E + B
3B + C = 40 + 16 + B
2B + C = 56
B + 2C = 32
2B + C = 56
-2 (B + 2C = 32)
2B + C = 56
-2B – 4C = - 64 [pic 3]
2B + C = 56
-3C = -8
C= -3/-8 = 3/8
A= 2x3= 6 = 3 | E= 4x3= 12 = 6 | D= 10x3= 30 = 15 | C= 3/8x3= 8 = 4 | B= 80/3x3 = 80 = 40 | F= 80/3x3=80 = 40 |
Balancear Na2SO4 + C CO2 + Na2S[pic 4]
2Na2SO4 | + | 4C | [pic 5] | 4CO2 | + | 2Na2S |
A | B | C | D |
Na: 2A = 2D
S: A = D
O: 4A = 2C
C: B = C
A = 2 D = 2 C = 4 B = 4
2A = 2D
2(2) = 2D
4/2 = D
2 = D
4A = 2C
4(2) = 2C
8/2 = C
4 = C
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