Problemas Equilibrio de Precipitación
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Transcript of Problemas Equilibrio de Precipitación
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7/25/2019 Problemas Equilibrio de Precipitacin
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Equilibrio de precipitacin
L :
I : 6.5108; I : 8.31017;
I : 7.1109; I : 4.71017
O :
; NI 0.1 M; 0.010 M
) PI2>TI > BI3 > AI; PI2>TI > BI3> AI; PI2> BI3 >TI > AI
S M2+
F3+
,
. S 0.10 M, :
E H
E % H = 10.0
: D: (M(OH)2) = 1.8.1011; (F(OH)3) = 4.0.1038
2.87
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. S F(NO3)3103
M H = 5.0.
. I F(OH)3?
. S F3+ , FF3. S , NF,
H = 5.0?
. C ?
K= 12.591039 3(FF3) = 7.94
N
4.64102; 4.94102
S 0.5 PI2()
100 102M KI?
C KCN PI 2? (
CN)
K(PI2) = 6.7.109; 4(P(CN)42) = 1.0.1010
3.089; 0.4095
) 100 L ; ) 100 L
0.05 M. C
, .
D: (BSO4) = 9.2; P (BSO4) = 233.34
) 5.86104 () 2.94106
100 L 2+ 0.5 M , .
C 2+ ?
D: (S) = 23.8; (H2S/HS /S2 ): 1=6.9, 2=12.6; HA, =4.7; P . = 65.4
R: 3.27108
C AI 1.0 M? C A(NH3)2
+
D: (AI) = 15.83; 2 (A(NH3)2+) = 7.4; P (AI) = 234.8
R: 1.43102
A 2.00 BSO4 500 L EDTA 0.08 M H 10.
C .
D: (BSO4) = 9.2; B2 ( H = 10)= 7.3;
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2+
102
M. C H :
) (OH)2
) 2+
) (OH)42
D: ((OH)2 )= 15.3; = 1014
; 4((OH)42
)= 15.5
) 7.35; ) 8.9; ) 12.9
C :
) A2CO3 ; ) CF2 NF 0.1 M; ) FS H2S (0.10 M).
D: (A2CO3) = 10.4; (CF2) = 9.8; (FS) =23.8
(HF/F
) =3.05; (H2S/HS
/ S2
): 1=6.9, 2=12.6
) 2.37104 M; ) 107.8 M; ) 6.31012 M
H 4.00 L(NO3)3 1.00103
M EDTA 1.01103
M.
) C L(III) EDTA.
) S (K2O) 1.00103 M,
H, L(III) .
D: L = 6.8 ( H=4)
H2O/HO/O21 = 1.1; 2 = 4.0 L2O3() = 27.7
