Organic Chem Lab
Give brief answers to the following questions
:
1.
What happens to a molecule when it absorbs UV light ? rvv'ill occra'' 6e cfr'oh fvhan ?- rr.ote c ulQ a$c,ovb r4V t;g hl , ?*rltdfi'oh o{ olQelraq ofc pronrottd potn *h'Qhr lraur1 dt *q,fe to erc;feC, slst<,Th<;6bSotb1 ) qh':o&s ih n^olf c',la g r.in9 qb,olal ob{,1tr.ira :Lind c o1 et<cif l,pln+t
qt"d QqCh W-qrtr\ve 1t5 ou, 4iSfictlre ancvcry.0rl+yorvi6lst: qnI vrstblC t;Jht brin3 lboql rrrovc tbq\i v orl{rrro e.tCclro tts t5 Ricorlt5 fu o rv fttr rd bo r"afi| "t rrlolt Cql or- orbitqt fe trnfi tta I antbol dC,inq otbitql 2.
How'much amount of reagent grade NaCl vou need to prepare 500 ml solution of 5 ppm concentration ?
\ of enorj:
I
pp*
- t
P*"P T
y
w.ass(bg)
Strr". I x Ly 0.'S L iooD 3.
What is l,*,* and
lt')s00 m9 * hor is it determine ?
ettctrovrn4grr+hc spccFr4q accvt
cqt be 4eve'^i* lh )\ven svt,sraxe' tt rag alpl 5itr9 lvoodr,arilc ard g1*r6 rqt4 rvticllr 4gtd ftr eshHahng tt6 Po$'t\oh of rnaxl 6q* qb$rbq\r. rraeg lOqgtr in ,.1yq'iolef c1eetftrtstu^1'
lr",r." , c
k nov"q
49
wqtQlorl$'ftt q+ "/Irtgla rnq'xi tt"urn
a|qo(
bqwc.Q ;4
4-
what type of organic compounds show UV absorption bands and why
?
th, ,{
orgq*C(ohtounAs'th4tOrotr, Uv atog0{tt0h
bonds qt{t
lnosb
wrfi., vi,!h dQSroe .t (oT!ryrti oh and abcov b tigrat lu t{v 0v vtltblg re{io\ 0t tt .tror\qgnch6 ca{cfrnn && calvent $r lhosf detu n4hovt
atq. ofltr
w qt Cr-
W
war\e' gofu$a kery co yr80
v+v\de
of &fhawl pr
onbqv[C ao\uV\g tOrnjour'rdf.besdO s,gVuctuyc r.^Jh 4onU\r botd 1 tnpfa
UorJ
or b(n:srq yih65 ? ftrm t
Wou!
absovlofiovr |a{t<zt'l'T}.4e
\f
of
g,!r,rCtuv, (ontaivr
Pi''oltCf,.rtl''iz etecfions o'14
svteCeh'fru\c'F
qtFA,i' 0l
of olbSorlh On-
:
1.
What happens to a molecule when it absorbs UV light ? rvv'ill occra'' 6e cfr'oh fvhan ?- rr.ote c ulQ a$c,ovb r4V t;g hl , ?*rltdfi'oh o{ olQelraq ofc pronrottd potn *h'Qhr lraur1 dt *q,fe to erc;feC, slst<,Th<;6bSotb1 ) qh':o&s ih n^olf c',la g r.in9 qb,olal ob{,1tr.ira :Lind c o1 et<cif l,pln+t
qt"d QqCh W-qrtr\ve 1t5 ou, 4iSfictlre ancvcry.0rl+yorvi6lst: qnI vrstblC t;Jht brin3 lboql rrrovc tbq\i v orl{rrro e.tCclro tts t5 Ricorlt5 fu o rv fttr rd bo r"afi| "t rrlolt Cql or- orbitqt fe trnfi tta I antbol dC,inq otbitql 2.
How'much amount of reagent grade NaCl vou need to prepare 500 ml solution of 5 ppm concentration ?
\ of enorj:
I
pp*
- t
P*"P T
y
w.ass(bg)
Strr". I x Ly 0.'S L iooD 3.
What is l,*,* and
lt')s00 m9 * hor is it determine ?
ettctrovrn4grr+hc spccFr4q accvt
cqt be 4eve'^i* lh )\ven svt,sraxe' tt rag alpl 5itr9 lvoodr,arilc ard g1*r6 rqt4 rvticllr 4gtd ftr eshHahng tt6 Po$'t\oh of rnaxl 6q* qb$rbq\r. rraeg lOqgtr in ,.1yq'iolef c1eetftrtstu^1'
lr",r." , c
k nov"q
49
wqtQlorl$'ftt q+ "/Irtgla rnq'xi tt"urn
a|qo(
bqwc.Q ;4
4-
what type of organic compounds show UV absorption bands and why
?
th, ,{
orgq*C(ohtounAs'th4tOrotr, Uv atog0{tt0h
bonds qt{t
lnosb
wrfi., vi,!h dQSroe .t (oT!ryrti oh and abcov b tigrat lu t{v 0v vtltblg re{io\ 0t tt .tror\qgnch6 ca{cfrnn && calvent $r lhosf detu n4hovt
atq. ofltr
w qt Cr-
W
war\e' gofu$a kery co yr80
v+v\de
of &fhawl pr
onbqv[C ao\uV\g tOrnjour'rdf.besdO s,gVuctuyc r.^Jh 4onU\r botd 1 tnpfa
UorJ
or b(n:srq yih65 ? ftrm t
Wou!
absovlofiovr |a{t<zt'l'T}.4e
\f
of
g,!r,rCtuv, (ontaivr
Pi''oltCf,.rtl''iz etecfions o'14
svteCeh'fru\c'F
qtFA,i' 0l
of olbSorlh On-