determinacion complexometrica de plomo, cinc y manganeso
DESCRIPTION
jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjTRANSCRIPT
DETERMINACIN OMPLEXOMTRICA DE PLOMO, CINC Y MANGANESOA. DETERMINACION COMPLEXOMETRICA DE PLOMO
Valoracin del EDTA:Patrn (g) (mL)pHIndicador a usarColoracin final
PbSO40,107835,5Naranja de XilenolAmarillo limn
Calculamos el ttulo del EDTA:
Para la determinacin de Plomo se tiene el sgte cuadro: (g) (mL)Indicador a usarColoracin final
0,10650,4Naranja de XilenolAmarillo limn
Se halla el porcentaje de Plomo (%Pb):
2. Determinacin comlexometrica de Cinc:Patrn (g) (mL)pHIndicador a usarColoracin final
Zn0,02463,455,3 5,5Naranja de XilenolAmarillo limn
Valoracin del EDTA:
Determinacin de zinc (mL)Indicador a usarColoracin final
0,4Naranja de XilenolAmarillo limn
3. Determinacin Complexomtrica de Manganeso (II): Valoracin del EDTA:Patrn (g) (mL)pHIndicador a usarColoracin final
MnSO42H2O0,1058610NETAzul
DETERMINACION DE Mn:Muestra (g) (mL)Alcuota (mL)Indicador a usarColoracin final
200102,4Naranja de XilenolAmarillo
Calculamos el %Mn:
Tambin hallamos la pureza del mineral: