The Solubility of a Salt
2006-11-17 09:12:32 · 8 answers · asked by anight2785 1 in Science & Mathematics ➔ Chemistry
The "dynamic equilibrium" means this: suppose you make a saturated solution of some salt, and add a little more, so there will be some solid salt present. There will be an ongoing (dynamic) process such that some of the solid will be dissolving, while some of the salt in solution will be precipitating, continuously. But overall, the amounts of salt that are dissolved and solid stay constant.
2006-11-17 11:58:23 · answer #1 · answered by pack_rat2 3 · 0⤊ 0⤋
Solubility Of A Salt
2016-11-07 09:04:39 · answer #2 · answered by masri 4 · 0⤊ 0⤋
An intrinsic property of a salt is how it reacts with water molecules. Sometimes a salt is more stable interacting with water in ionic form (meaning one atom has given electron(s) to the other, and formed a cation and an anion). Sometimes salts are not stable in this form, and do not ionize. And many salts fall in between completely ionizing and not ionizing. The solubility constant of a salt described this quantitatively.
By nature of dissolving, some atoms will exist in the ionic state, some will exist in the salt state (precipitate). The solubility constant describes this ratio. Constantly, ions and salts are interconverting, and when a solution is at dynamic equilibrium, there is no net change from ionic form to salt form.
2006-11-17 09:21:50 · answer #3 · answered by Brian B 4 · 0⤊ 0⤋
If you add salt (sodium chloride) to a glass of water and keep stirring, you eventually get to a state where there is a certain amount or concentration of salt in solution, and another amount lying in crystals on the bottom. This is not a static situation where the salt is in the solution, and the crystals are just sorta lyin' there. There is a furious activity of sodium and chloride ions dissolving out of the crystals and entering the solution. At the same time, there is a rapid deposit of sodium and chloride ions onto crystals. The dissolving rate equals the rate of deposition. So it's an equilibrium. Everything stays the same. But all this activity goes on, so it's dynamic.
2006-11-17 09:29:21 · answer #4 · answered by steve_geo1 7 · 1⤊ 0⤋
when salt is dissolved in water it is dissociated into ions till a certain extent (saturation level ) where no more salt can be dissolved in this case some of the dissolved ions reform and an equal amount of undissociated ones do dissolve.
so we have here 2 opposite cases going by an equal rate (what is called dynamic equillibrium )
2006-11-17 09:31:27 · answer #5 · answered by Anonymous · 0⤊ 0⤋
dynamic = (change) equilibrium = (rate are equal) dynamic equilibrium means that the rate of leaving and entering are the same... therefore, at any time... there is the SAME amount of stuff inside a system.. example: if a classroom is filled with 100 people and every hour, 10 people leave the ROOM.... but coincidently, every hour... 10 people enters the ROOM at the same time... after 20 hours... the room still has 100 people... that is a Dynamic Equilibrium... although they are Changing, the system has the same entity due to same out-rate and in-rate
2016-05-21 23:31:08 · answer #6 · answered by Anonymous · 0⤊ 0⤋
basically its the proportions involved:
how much water vs how much salt- the solubility is the % in reference to a change or growth of the two. adding more water makes the salt more diluted, adding more salt makes the water less effective and vise versa.
2006-11-17 09:21:24 · answer #7 · answered by Slutlana 4 · 0⤊ 0⤋
mostly its how much salt dissolves in how much water, extra salt precipitates out
2006-11-17 09:15:30 · answer #8 · answered by kurticus1024 7 · 1⤊ 0⤋