Conjugate Acids and Bases Video Lecture - NEET

we have previously learned about the
bronsted-lowry theory of acids and bases
we will now learn about conjugate acids
and bases using our knowledge of the
bronsted-lowry theory let's do a quick
warmup vinegar is a five percent aqueous
solution of acetic acid vinegar is used
in cooking worldwide and is sometimes
used as a cleaning agent from the
equation which describes the behavior of
acetic acid in water could you identify
the bronsted-lowry acid and the
bronsted-lowry base pause and resume
when ready the bronsted-lowry acid is
acetic acid because it releases a proton
water accepted a proton from acetic acid
so it is a bronsted-lowry base as we
have learned an acid-base reaction all
according to the bronsted-lowry Theory
involves the transfer of a proton let's
now look at what has been formed from
this reaction the acetate ion is formed
when acetic acid released the proton the
acetate ion is the conjugate base in
this reaction can you remember what this
is called pause and resume when ready
this is a hydronium ion also known as an
oxonium ion the hydronium ion is formed
when water accepted a proton from acetic
acid this is the conjugate acid in this
reaction when a bronsted-lowry acid
releases the proton the resulting
species is its conjugate base when a
bronsted-lowry base accepts a proton the
resulting species is its conjugate acid
acetic acid and the acetate ion is a
conjugate pair
can you identify the other conjugate
pair in this reaction pause and resume
when ready
water and the hydronium ion is the other
conjugate pair
so when acid and its conjugate base is a
conjugate pair and a base and it's
conjugate acid is also a conjugate pair
now are you ready for a challenge for
this reaction try to identify in the
bronsted-lowry acid the bronsted-lowry
base the conjugate base the conjugate
acid and the conjugate pairs let's grab
a piece of paper and a pencil pause the
lesson and resume when ready
the bronsted-lowry acid is sulfuric acid
as it releases a proton to ammonia since
ammonia accepted the proton it is the
bronsted-lowry base the hydrogen sulfate
ion is the conjugate base of sulfuric
acid the ammonium ion is the conjugate
acid of ammonia
therefore sulfuric acid and the hydrogen
sulfate ion form a conjugate pair and
ammonia and the ammonium ion form
another conjugate pair in summary a
conjugate base is formed when a
bronsted-lowry acid releases its proton
conjugate acid is formed when a
bronsted-lowry base accepts a proton
a bronsted-lowry acid and its conjugate
base is a conjugate pair as is a
bronsted-lowry base and its conjugate
acid