OBJE
In th
INTRO
In to
actua
sessi
In th
expo
In th
color
this c
relat
wher
path
The B
relat
invol
and t
to th
cause
poison
Attorn
The of
been c
human
Camut
Stephe
in Con
CTIVES
is forensics ex
Determin
ODUCTION
oday’s lab you
ally be used i
on. A likely s
Obtain pr
Convert t
React the
Create sta
Determin
Calculate
is lab you wil
osure to the p
his experime
rimeter is a d
case the red
ionship know
re A= absorba
length.
Beer‐Lambert
ionship to he
ve the creatio
the results wi
e graph to de
Allege(by A
The M
of death of a
ning, accordin
ney's Office.
ffice plans to
charged with
n remains --- a
ti, 69, confess
en Rakes, 59,
ncord District
xperiment yo
e the amount
u will be inve
in an actual p
scenario woul
ecisely measu
he cyanide (C
KSCN with ir
andardized iro
e the visible a
the amount o
ll be only per
oisonous cya
nt you will
evice that me
solution of F
wn as the Bee
ance, c = con
t Law shows t
elp you find th
on of several
ill be graphed
etermine its c
A ed Bulger eAllie Malloy)
Massachusetts
an alleged W
ng to MaryB
o seek additio
h attempted m
as a result of
sed to putting
according to
Court on Sep
ou will
t of cyanide i
estigating a s
poisoning but
ld look somet
ured sample
CN‐) into KSCN
on(III) chlorid
on(III) thiocya
absorption of
of cyanide in
forming the f
nide.
be using a c
easures the a
FeSCN+2 will b
r‐Lambert Law
centration an
that the relat
he concentrat
solutions of k
d. The absorb
concentration
extortion vi
)
Medical Exa
Whitey Bulger
Beth Long, a
onal charges
murder, misl
the official au
g potassium c
o a testimony
ptember 10.
n a coffee sam
imulated ars
t we have sh
thing like:
of the poison
N by reacting
de to produce
anate solutio
f the iron(III) t
the original s
final three ste
colorimeter
amount of ligh
be compared
w:
nd k = constan
ionship betw
tion of FeSCN
known conce
bance of an u
n.
ictim died
aminer's Offic
r extortion vi
a spokeswom
against Willi
eading police
utopsy report
cyanide in an
by a Massac
mple.
enic poisonin
ortened the
ned coffee.
it with potas
e the complex
ns and determ
thiocyanate f
sample.
eps. This sho
to determine
ht of a particu
with a serie
A = kc
nt that is spec
ween absorban
N+2 in an unkn
entrations. Th
nknown FeSC
of cyanide
ce officially d
ctim was hom
man for the M
iam Camuti -
e and unlaw
t.
iced coffee t
chusetts state
ng. This is th
procedure so
sium sulfide.
x ion iron(III)t
mine the visib
from the coff
rtens the pro
e the conce
ular wavelen
es of standard
cific for each
nce and conc
own solution
he absorbanc
CN+2 solution
L11: Kill
e poisoning
determined th
micide by cy
Middlesex D
-- who has al
wful dispositio
that he provid
trooper at he
he same type
o that it may
thiocyanate (
ble absorptio
fee sample.
ocedure and a
ntration of t
gth that is ab
ds. You shall
species at a c
centration is l
n. The first pa
ce of these so
will then be m
er Cup o
g
hat the
yanide
istrict
lready
on of
ded to
ear...
