Answer to Question #47271 in Organic Chemistry for Rajkumar

Question

You
recently
conducted
an
experiment
in
your
college
laboratory
in
which
acetylglycine
was
prepared
by
reaction
of
glycine
with
acetic
anhydride
.
Write
a
report
based
on
the
notes
given
below,
describing
the
apparatus
used
and
the
procedure
followed.
0.10
g
glycine
and
0.4
ml
water
taken
in
5
ml
conical
vial.
Warmed
slightly
to
dissolve
the
glycine.
0.3
rnl
acetic
anhydride
added
and
stirred
for
about
5
min.
Mixture
cooled
in
ice
bath
for
10
min.
Precipitate
collected
by
suction
filtration
and
washed
with
a
few
ml
water.
Clystais
spread
over
a
piece
olfiiter
papel
or
watch
glass
and
air
dried
for
i0
min.
Mass
and
melting
point
of
product
recorded.
Glycine
dissolved
after
about
20
sec
when
watmed
in
gl5'cineiwater
mixture'
White,
needle-shaped
crystals
formed
when
reaction
mixture
cooled
in
ice.
0.14
g.
of
solid
obtained
after
f,rltration
and
drying
of
product.
mp
of
crystals
recorded
as
205-207
n
Solid
product
possibly
still
slightly
wet.
Conclusion:
crystallized
material
was
in
fact
acetanilide,
based
on
its
melting
point.
Not
highly
pure.
A
second
crystallization
should
produce
a
fairly
pure
material,
but
it
would
also
decrease
theYoreco