
Equilibrio de solubilidad
Authored by Heilen Arce
Chemistry
University

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5 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La expresión de equilibrio para el siguiente proceso es:
Ba3(PO4)2(s) ⇋ 3 Ba2+(ac) + 2 PO43-(ac)
Kps = [Ba2+][PO43-]
Kps = [Ba2+]3[PO43-]2
Kps = [Ba2+][PO43-]
[Ba3(PO4)2]
Kps = 1/[Ba2+]3[PO43-]2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Señale la opción en la que será más soluble el Fe(OH)3 (s):
Agua pura
Disolución de FeCl3 0,100 mol/L
Disolución de pH = 12,5
Disolución de pH = 2,7
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calcule la solubilidad molar del Fe(OH)3 en agua a 25ºC:
Kps = 2,79x10-39
1,01x10-10
1,41x10-13
5,28x10-20
2,30x10-10
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
La solubilidad del Ca(OH)2 a 25ºC es de 1,26x10-2 mol/L, por lo que su Kps tiene un valor de:
2,0x10-6
1,6x10-4
3,13x10-8
8,0x10-6
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Al mezclar disoluciones de Ba2+ y SO42- de forma que se tenga las concentraciones indicadas en la imagen, se tiene que:
Q > Kps y se formará un precipitado de BaSO4
Q > Kps y NO se formará un precipitado de BaSO4
Q < Kps y se formará un precipitado de BaSO4
Q < Kps y NO se formará un precipitado de BaSO4
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