Ino 4 Marcio.docx

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REACCIONES DEL SO4-2 a)Reaccion(1) SO4-2 + Pb(NO3)2



Observacion

( NO3)-1 + PbSO4

Hay un leve precipitado y el color del precipitado es blanquesino.

CENTRIFUGANDO

Despues de centrifugar se observa que el precipitado se ha acentuado

a)Reaccion(2) PbSO4 + HCl  SO2 + H2O + PbCl2

f

Probando solubilidad No son solubles

a)Reaccion(3) PbSO4 + NH4C2H3O2  Pb(C2H3O2)2 + (NH4)2SO4

Probando solubilidad Se ha solubilizado, reaccion de separarcion e identificacion

Reacciones C2O42-

a)Reaccion(1) C2O42 + CH3COOH 

a)Reaccion(2)

Observacion

a)Reaccion(1)

Probando solubilidad No son solubles

Reaccion del CrO42-

a)Reaccion(1)

Precipitado

CrO42- + AgNO3  Ag2CrO4 + 2 (NO3)1-

Se forma el precipitado es el Cromato de plata.

a)Reaccion(1)

Precipitado

Ag2CrO4 + HNO3  AgNO3 + H2O + CrO3

No solubiliza

a)Reaccion(1)

Precipitado

Ag2CrO4 + NH4OH  (Ag(NH3)2) + CrO4 + H2O

Si solubiliza

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