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Have you ever chewed a piece of banana or khaki green? What did you feel? And what about the "taste" of a lemon? Some substances give us the feeling of "tying" the mouth. This is due to the characteristic astringent substance, since it inhibits the production of fluid (saliva) causing such a sensation. Substances that are characteristic astringent behave as a base. Other substances that taste sour behave like acid. Through experimental observations, based on similar behavior between substances, such as sour (acid) or bitter (astringent), conduction of electrical current, etc.., Chemically scientists sought to explain this behavior, ie, sought to answer the questions as this: "why a group of substances had certain characteristics and other characteristics different?". Thus, there have been various theories to conceptualize acids and bases. The first theory was proposed in 1884 by Svante Arrhenius, Swedish chemist. The problem that puzzled the chemist Arrhenius was: a bad driving electric current of distilled water. The salt (sodium chloride), when solid, neither conducts electricity. So why when sodium chloride dissolves in water, the solution conducts electricity? After researching, we observed Arrhenius acids and bases dissolved in water (aqueous solutions) was ionizavam (fatty) and to dissociate (bases), producing solutions that drive the electric current due to formation of hydrogen H cations and hydroxyl anions OH Currently, we know that hydrogen ions H in aqueous solution are surrounded by water molecules (due to the high ratio between the load and the radius of the ion), giving rise to hydrated hydrogen ion, often called hydronium. The hydronium ion can be represented as H and H But what does ionize? When a substance is dissolved in water or another solvent (alcohol, ether, etc.). Formation occurs ions ionize the substance itself. Notice as is the ionization reaction of sulfuric acid (H SO
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Jeste li ikad žvakao komad banane ili kaki zelenoj? Što ste se osjećali? A što je s "okus" od limuna? Neke tvari daju nam osjećaj "vezivanje" usta. To je zbog karakterističnog oporom tvari, budući da inhibira proizvodnju tekućina (slina) uzrokuje takav osjećaj. Tvari koje su karakteristične steže ponašaju kao bazu. Ostale tvari koje okus kiselog ponašaju poput kiseline. Kroz eksperimentalnih mjerenja, na temelju sličnog ponašanja među tvari, kao što su kiselo (kiseline) ili gorke (steže), vođenje električne struje, itd.., Kemijski znanstvenici tražili da objasni ovo ponašanje, odnosno, pokušala odgovoriti na pitanja kao ovo: "Zato skupina tvari ima određene karakteristike i ostale karakteristike različite?". Dakle, tu su razne teorije da konceptualiziraju kiselina i baza. Prva teorija je predložio 1884 by Svanteom Arrhenius, švedski kemičar. Problem koji zbunjeno Kemičar Arrhenius je: loše vožnje električne struje destilirane vode. Sol (natrijev klorid), kada je čvrsta, niti provodi struju. Pa zašto kad natrijev klorid otapa u vodi, rješenje provodi struju? Nakon što je istraživanje, gledali smo Arrhenius kiseline i lužine otopljene u vodi (vodene otopine) je ionizavam (masnih) i razdvojiti (baze), proizvodnji rješenja koji pokreću električne struje zbog stvaranja vodika H katione i anione hidroksilne OH Trenutno, mi znamo da su vodikovi ioni H u vodenoj otopini okruženi su molekule vode (s obzirom na visoku omjer između tereta i radijusu od iona), čime se popeti na hidratiziranog iona vodika, često se naziva hydronium. Hydronium ionska može biti predstavljeni kao H i H Ali što ionize? Kada tvar se otopi u vodi ili drugi otapala (alkohol, eter, itd.) Formacija javlja ioni ionize sama tvar Obavijest što je ionizacije reakcija sumporne kiseline (H SO