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JINXUE 21.6Bronsted-Lowry Acid-Base Reactions - Coggle Diagram
JINXUE 21.6Bronsted-Lowry Acid-Base Reactions
Bronsted-Lowry Acid-Base Reactions
An acid-base reaction according to the Bronsted-Lowry definition is a transfer of a proton from one molecule or ion t another.
NH3(aq)+H2O(l)⇄NH+4(aq)+OH−(aq)
In this reaction. the water molecule is donating a proton too the ammonia molecule.The resulting products are the ammonium ion and the hydroxide ion. The water is acting as a Bronsted-Lowry acid, while the ammonia is acting as a Bronsted-Lowry base.
Also know the reaction the ammonium ion donates a proton to the hydroxide ion. the ammonium ion is a Bronsdted-Lowry acid, while the hydroxide ion is a Bronsted-Lowry base.
An amphoteric substance is one that is capable of acting as either an acid or a base by donating or accepting hydrogen ions.
Conjugate Acids and Bases
A conjugate acid-base pair is a pair of substance related by the loss or gain of a single hydrogen ion. A conjugate acid is the particle produced when a base accepts a proton. A conjugate base is the particle produced when an acid donates a proton.
Video Note
Water
amphoteric
Bronsted-Lowry Acid
Donate
Proton
Bronsted-Lowry Base
Accept
Proton
HA + B ------ A- + BH+
Acid + Base -- Conjugate Base + Conjugate acid
Example: HCI + H2O -- H3O + CI- (acid + base -- conjugate acid + conjugate base
To identify Bronsted-Lowry acids, bases, and/or conjugate acid-base pairs, using proton-transfer reactions.
https://www.youtube.com/watch?v=HdmCagtasYg
Video 2 Note
A Bronsted-Lowry acid is a proton (H+) donor.
A Brontsted-Lowry base is a proton (H+) acceptor
https://www.youtube.com/watch?v=xYLN0hh8pVI