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Yes. It's when a proton from two identical molecules ionizes one of the molecules. In water, the H+ from one H2O molecule ionizes the other one so H3O+ is formed, and the molecule that lost the proton is now OH-. Hope this helps!
Autoprotolysis is when one molecule transfers a proton to another molecule of the same kind. Its a molecule that is amphoteric like water. Water is the most common example of autoprotolysis. The kw is the autoprotolysis constant.
Funmi Baruwa wrote:Could someone please explain what autoprotolysis is, and its importance? Is it the conversion of water to H3O+ and OH-?
Autoprotolysis is similar to what it sounds like. It's "automatic" protolysis (or proton transfer). In this context, autoprotolysis is happening in water, so you can think of it as some water molecules "automatically" giving a proton to another water molecule, forming a very small concentration of H3o+ and OH-. It is measured to have a Kw = 10^-7, hence pH of 7.
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