ATQ Expt 5

QUANTITATIVE DETERMINATION OF ACETYLSALICYLIC ACID IN ASPIRIN TABLETS BY  B  BACK  T  TITRATION  J.B. NACOMEL DEPARTMENT  OF MINING OF  MINING, METALLURGICAL  AND MATERIALS ENGINEERING, COLLEGE OF ENGINEERING OF  ENGINEERING UNIVERSITY OF  UNIVERSITY  OF THE THE PHILIPPINES, DILIMAN QUEZON CITY , PHILIPPINES

DATE PERFORMED : SEPTEMBER  23,

2015

INSTRUCTOR ’S NAME: SEARLE AICHELLE DUAY

1. Discuss the use ! " #$e %i&ute s&uti' !$ the st"'%"$%i("ti' !  N"O). A more !"#$e %o"#$!o& 'o#" m()e !$ e(%!er *or #% $o e$erm!&e $+e e&o!&$ #r!&- $!$r($!o&. *. Discuss the $"ti'"&e +ehi'% the %i&ut %i&uti' i' "'% "&i,u "&i,uti' ti'- ! "si$ "si$i' i' s"#&e.  T+e (%!r!& %(m"e '(% !"#$e (& ("!/ ("!/#o #o$e $e  %o $+($ $+($ $+e $+e o& o&e& e&$r $r($ ($!o !o& & 'o#" e om($!"e *or &e#$r("!($!o&. /. Discuss the $i'ci&es +ehi'% the use ! +"c0 tit$"ti' i' the "'"&sis ! "si$i' t"+&et. I& () $!$r($!o&, 'e ( (& ee%% (mo#&$ o* $+e %$(&(r $!$r(&$, !& $+!% (%e, N(OH (& e$erm!&e $+e ee%% (mo#&$ #%!&- ( %eo& $!$r(&$, HC". T+e (mo# (mo#&$ &$ o* (e$ (e$4" 4"%( %("! "!4 4"! "!  (! (!!% !% $+e $+e !ere&e !ere&e e$'ee& $+e (mo#&$ o* N(OH (& HC". 2. Discuss the i#$t"'ce !  si##e$i'- the t"+&et i' the N"O) s"#&e !$ *3 #i'utes.  T+e $("e$ '(% %!mmere !& $+e N(OH %(m"e *or 20 m!&#$e% %o $+($ !$ 'o#" #&er-o +4ro"4%!%. No$ o!&- %o '!"" '!"" 6#%$ 6#%$ ro ro# #e e ( ro ro# #$$ ( '($e '($err e(#%e $+e r($e o* re($!o& o* $+e%e 2 !% %"o'. 4. Discuss uss s ss si+&e i+&e su$c u$ce es !  e$$$s "'% thei$ e5ect ' the "$"#ete$s. So#re% o* error% m(4 o%%!"4 ome *rom $+e !&om"e$e +4ro"4%!% o* $+e %(m"e (& $+e %$(&(r!($!o& o*

%o"#$!o&%. I&om"e$e +4ro"4%!% m(4 (#%e ( ere(%e !& $+e ("#"($e (mo#&$ o* (e$4"%("!4"! (! (& $+e %$(&(r!($!o& o* %(m"e% m(4 ("%o (e$ $+e ("#"($e (mo#&$ o* (e$4"%("!4"! (! ee&!&- !* !$ '(% more or "e%%.

REFERENCES 718 S)oo-, D.A., 9e%$, D.M., Ho""er, F.., Cro#+, S.R. F#&(me&$("% o* A&("4$!(" C+em!% C+e m!%$r4 $r4 ;$+ e. Broo)%#(&$!$($!?e C+em!(" A&("4 A&( "4%!% %!% @$+ e. 9.H. Freem( Freem(& & (& Com(&4, Ne' Yor). 200@

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