Question

what is bronsted lowry concept of acids and bases

Answer 1

MAIN POINTS OF THE BRONSTED LOWRY THEORY

●A Bronsted-Lowry acid is a chemical species capable of donating a proton or hydrogen cation.

●A Bronsted-Lowry base is a chemical species capable of accepting a proton. In other words, it is a species that has a lone electron pair available to bond to H+.

●After a Bronsted-Lowry acid donates a proton, it forms its conjugate base. The conjugate acid of a Bronsted-Lowry base forms once it accepts a proton. The conjugate acid-base pair have the same molecular formula as the original acid-base pair, except the acid has one more H+ compared to the conjugate base.

●Strong acids and bases are defined as compounds that completely ionize in water or aqueous solution. Weak acids and bases only partially dissociate.

●According to this theory, water is amphoteric and can act as both a Bronsted-Lowry acid and Bronsted-Lowry base.



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Answer 2

Bronsted-Lowry Concept

▪︎When an acid loses its proton , the remaining part is called the conjugate base of the acid.

▪︎Similarly , when a base accepts a proton , it forms the conjugate acid of the base.

Consider the system :

HCl + H2O ⇌ H3O+ + Cl‐

acid-1 base-2 acid-2 base-1

○ base-1 is conjugate base

○acid-2 is conjugate acid

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