why a saturated solution in contact with some undissolved solid is considered to be an equilibrium situation?
2007-04-02 07:23:32 · 6 answers · asked by reem h 2 in Science & Mathematics ➔ Chemistry
Because in the saturated solution this reaction is continously taking place:
AB(s) <--> A+ + B-
(or something like that ayway)
Just because there is solid sitting on the bottom doesn't mean it's not taking place in the chemistry of the system. The solution that surrounds the solid is full of A+ and B- ion and they are contantly hitting the solid and causing this equilibium reaction to occur.
2007-04-02 07:37:48 · answer #1 · answered by Dr Dave P 7 · 1⤊ 0⤋
An equilibrium condition in any situation always implies a reaction in one direction is equal to the reverse reaction in quantity.
Therefore the amount of solid that dissolves equals the amount of solute that precipitates on the surface of the solid.
solid <======> aqueous solute
2007-04-02 07:43:09 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Equilibrium requires an balance between two situations for a substance. In this case, the two situations are that the substance is dissolved in solution and that it is undissolved. If one situation disappears, there is no equilibrium.
2007-04-02 07:28:05 · answer #3 · answered by cattbarf 7 · 1⤊ 1⤋
Because your chemistry professor said so.
2007-04-02 07:26:31 · answer #4 · answered by Student 4 · 0⤊ 0⤋
Cuz, they even each other out!
2007-04-02 07:29:27 · answer #5 · answered by Brandon H 3 · 0⤊ 2⤋
I won't help you, CHEATER, CHEATER. PENCIL FIRE!
2007-04-02 07:27:33 · answer #6 · answered by Benjamin Ye 2 · 1⤊ 2⤋