This is something I really don't understand, and I'm not even sure how to ask the question - but I'll try. Why isn't water part of the reaction in reactions between solutions?
sodium hydroxide (aq) reacts with hydrochloric acid (aq) to make sodium chloride and water.
NaOH + HCl --> NaCl + H20
As both of the reactants contain water, why doesn't the first part of the equation contain H2O? And how do I know that the H2O that is apparently produced in the reaction isn't just the H2O that was in the two reactants in the firsts place?
Am I making any sense at all? This question has been baffling me since I started (Sept 05).
Don't mind the quote, did this to refresh memory.
This is my own theory which I thought about it
Firslty, NaOH in water
NAOH --> NA+(aq) + OH- (aq)
Not forgetting the equilibrium in water( H2O molecules ), there would be more OH- than H+ in water, making the solution alkaline. Same goes to HCL in water, which makes the solution acidic.
Mixing both of them only gives you
Na+(aq), CL-(aq), and H2O!?!? WHat happen to the H+ and OH-?
Simple, the only reaction taking place is only H+ and Oh-.( This can be confirm using standard enthapy of neutralisaion) Due to the abundance in the 2 solution, they reacted together to form H2O molecules maintaing the equlibrium in water.
Some may wonder why does only the H+ and OH- react? My only possible guess is the strong electrostatic attraction between these 2 molecules wheras NA+ and Cl- are still strongly bonded to H2O molecules via ion dipole attraction.
Note in some neutralisation, a SOLID salt( For eg silver chloride) is produced? Why? The direct and foremost reason is Kip salt > Ksp. However what does they explain? Someone might want to answer me that
My only guess is the energy involed using some formula