Lab 1 - Part 2 - Synthesis and Analysis of Iron Oxalate

Lab 1 - Part 2 - Synthesis and Analysis of Iron Oxalate -...

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Unformatted text preview: CH E M 3 0 A L Expe rime nt #11: Analysis of Iron oxalate Comple x (PART 2) REDOX Titration Analysis of Iron Oxalate Comple x by KMnO4 S p r in g 2 0 1 0 I M P O R T A N T : M a k e s u r e th a t y o u fo llo w th e p r o p e r la b o r a to r y s a fe ty p r o to c o l (r e fe r to th e c o u r s e s y lla b u s ) B E F O R E g o in g to th e la b . Y o u w ill b e d is m is s e d fr o m th e la b o r a to r y if y o u d o n o t fo llo w th e p r o p e r s a fe ty p r o to c o l. P r e -la b R e p o r t G u id e lin e s (i) T itle (ii) R e fe re n c e o f p ro c e d u re s (iii) In tro d u c tio n - s u m m a riz e th e g o a l(s ) f o r th is p a rt o f th e e x p e rim e n t a s w e ll a s a n y te c h n iq u e s (in c lu d in g a n y s y n th e tic ; a n a ly tic a l a n d /o r p u r ific a tio n te c h n iq u e s ) th a t y o u w ill b e u s in g in a c h ie v in g s u c h g o a l(s ). (iv ) P r o c e d u r e s i n f l o w c h a r t f o r m a t ; y o u w i l l d o O N L Y “ T i t r i m e t r i c A n a l y s i s o f O x a l a t e u s i n g K M n O 4“ p a rt, (r e fe r to p . 1 0 1 u n d e r p e r io d 2 B U T N O T I N C L U D I N G " C o lo r im e tr ic A n a ly s is o f I r o n " . Y o u w ill c o m p le te th e flo w c h a r t fo r th e c o lo r im e tr ic a n a ly s is in P A R T 3 o f th e p r e -la b r e p o r t) (v ) M S D S in f o rm a tio n T h e f o llo w in g c h e m ic a ls w ill re q u ire y o u to u s e th e M S D S d a ta b a s e o n th e W e b : Potassium permanganate (0.05 to 0.15M) N o te : I n M S D S , s e le c t th e s ite th a t g iv e s y o u th e M S D S in fo r m a tio n C L O S E S T to th e c o n c e n tr a tio n lis te d a b o v e fo r e a c h in d iv id u a l c h e m ic a l. Y o u s h o u ld re c o rd th e f o llo w in g M S D S in f o rm a tio n in y o u r n o te b o o k f o r th e c h e m ic a ls lis te d a b o v e . (P r in to u ts d ir e c tly fr o m th e W e b p a g e s w ill N O T b e a c c e p te d !!) (a ) P ro d u c t N a m e (b ) C h e m ic a l F o rm u la (c ) F o rm u la W e ig h t ( d ) M e ltin g P o in t; B o ilin g P o in t a n d D e n s ity ( i.e . s p e c if ic g r a v ity ) (e ) H e a lth H a z a rd D a ta (s u m m a r iz e in y o u r o w n w o r d s ) (f ) S p ill a n d D is p o s a l p ro c e d u re s (s u m m a r iz e in y o u r o w n w o r d s ) (v i) P re -la b s tu d y q u e s tio n s (M u s t s h o w a ll w o r k fo r F U L L c r e d it) C o m p le t e O N L Y q u e s t io n s 1 a n d 2 u n d e r p e r io d 2 o n p .9 9 . F o r q u e s tio n 2 , th e h in t is th a t o n e m o le o f m e ta l io n c o m b in e w ith o n ly o n e m o le o f E D T A . (v ii) D a ta /o b s e rv a tio n s (s ta rt a N E W p a g e f o r th is s e c tio n ) S e t u p ta b le s b u t le a v e b la n k . Y o u M U S T r e c o r d a ll th e o b s e r v a tio n s in to y o u r la b n o te b o o k d u r in g y o u r la b s e s s io n s . CH E M 3 0 A L S p r in g 2 0 1 0 Expe rime nt #11: Analysis of Iron Oxalate Comple x (PART 2) REDOX Titration Analysis of the Iron Oxalate Comple x by KMnO4 Post-lab Re port Guide line s This is an INDIVIDUAL Re port Re fe r to the post-lab due date liste d on the lab sche dule P o s t – la b R e p o r t fo r P A R T 2 is d u e o n 4 / 1 5 & 1 6 d e p e n d in g o n w h e n y o u r s e c tio n m e e ts . (A ) A b s tr a c t (r e fe r to P A R T 1 p o s t-la b g u id e lin e o n w h a t to in c lu d e in th e a b s tr a c t s e c tio n o f th is p a r t o f th e r e p o r t) ( B ) T it r a t io n D a t a ( s e e p .1 0 3 u n d e r A n a ly s e s ) (i) O rd e rly re c o rd y o u r titra tio n d a ta (ii) D a ta ta b le s s h o u ld h a v e p ro p e r title s /la b e ls (C ) D a ta A n a ly s is (M U S T S H O W A L L W O R K F O R F U L L C R E D I T ) (i) C a lc u la te th e m o le s o f o x a la te f o r e a c h o f y o u r titra tio n s , b a s e d o n th e s to ic h io m e try o f e q u a tio n 3 , p . 9 8 (ii) C a lc u la te th e m o le s o f o x a la te /g ra m o f p ro d u c t f o r e a c h o f y o u r titra tio n (D ) E r r o r A n a ly s is (M U S T S H O W A L L W O R K F O R F U L L C R E D I T ) A b s o lu te u n c e r ta in tie s fo r v a r io u s ty p e s o f la b o r a to r y e q u ip m e n t a r e lis te d o n p a g e 3 1 o f y o u r la b m a n u a l ( i) C a lc u la te th e % in h e re n t e rro r f o r th e m o le s o f o x a la te / g ra m o f s a m p le f o r O N E o f y o u r titra tio n tria l. N o te : C o n c e p ts o n h o w to c a lc u la te % in h e re n t e rro r w e re d is c u s s e d e x te n s iv e ly in C h e m 20L. C a lc u la te th e % R A D (re f e r to p a g e 2 2 -2 5 f o r d e f in itio n s ) f o r th e m o le s o f o x a la te /g ra m o f s a m p le th a t y o u o b ta in e d f ro m y o u r o w n titra tio n tria ls . (ii) N o te : I f th e r e is n o % r e la tiv e e r r o r (o r a b s o lu te e r r o r ) g iv e n o n th e b o ttle o f p o ta s s iu m p e r m a n g a n a te s o lu tio n , y o u m a y a s s u m e th e % R E L A T I V E e r r o r in th e s to c k p o ta s s iu m p e r m a n g a n a te s o lu tio n to b e ± 0 .0 1 % . (E ) C o n c lu s io n s (i) S u m m a riz e re s u lts (ii) C o m p a re % R A D w ith th e % in h e re n t e rro r. W h a t c a n y o u c o n c lu d e ? E x p la in . ...
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This note was uploaded on 06/27/2010 for the course CHEMISTRY Chem 30AL taught by Professor Henary,m. during the Spring '10 term at UCLA.

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