Lecture : acid-base-equilibria-in-aqueous-solutions

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14 Nov 2022
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There are several ways/concepts/theories used to classify a substance as either an acid or base. Theories on acidity -bronsted and lowry, arrhenius and lewis. The br nsted-lowry theory describes acid-base interactions in terms of proton proton proton proton proton transfer transfer transfer transfer between chemical species. transfer. In terms of chemical structure, any br nsted-lowry acid must contain hydrogen hydrogen hydrogen hydrogen hydrogen dissociate asasasasas hhhhh +++++ that can dissociate dissociate dissociate dissociate. In order to accept a proton, a br nsted-lowry base must have at least one lone lone lone lone lone papapapapair of electrons to form a new bond with a proton. So, an acid-base reaction is any reaction in which aaaaa proton proton isisisisis transferred transferred proton proton transferred transferred from an proton transferred acid to a base. Br nsted-lowry definitions can be used to discuss acid-base reactions in any solvent (even gas phase). Eg, consider the reaction between ammonia and hydrogen chloride gases:

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