Well, as i understand it, the reactions that an acid and base generate in water, also occur in water naturally;in water, the electronpairs of oxygen that are not 'being used' can bind an H+ ion so that you have H30+ and OH. So this happens in water anyway, without adding anything and when the temperature rises this happens more frequently, so that you have more ions and thus a new balance occurs. Therefore, as i understand it, the PH of water slightly changes with it's temperature. (higher temp, lower PH)
Also these H+ ions can move through water, incredibly fast. Jumping from one molecule to the next.
So if you add a substance in a solution to wich the ions in the solution would have a stronger bind than to water, i mean; a substance that if it would form a salt with one of the substances in the solution, would have a low sollubility in water? could those ions, rapidly moving around come into contact with eachother so that the salt that would form would precipitate?
EDIT: in this case the opposite would ofcourse be more relevant. Could, if you have a solution of a salt that just has a low sollubility and you would add a substance that would, if it would be a salt, be a salt with high solubility, the ions that bind poorly to water, precipitate?
Also these H+ ions can move through water, incredibly fast. Jumping from one molecule to the next.
So if you add a substance in a solution to wich the ions in the solution would have a stronger bind than to water, i mean; a substance that if it would form a salt with one of the substances in the solution, would have a low sollubility in water? could those ions, rapidly moving around come into contact with eachother so that the salt that would form would precipitate?
EDIT: in this case the opposite would ofcourse be more relevant. Could, if you have a solution of a salt that just has a low sollubility and you would add a substance that would, if it would be a salt, be a salt with high solubility, the ions that bind poorly to water, precipitate?