lab report (conductometric titration)

8/18/2019 Lab Report (Conductometric Titration)

1/14

LAPORAN INDUSTRI PROSES

Lab Report (Conductometry Titration)

Oleh:

Fitri Nafisa (151424013)

Nurlailatush Sholihah(151424021)

PROGRA STUDI DI!"TE#NI# #IIA PRODU#SI $ERSI%

JURUSAN TEN! !"!A

#O$!TEN! NE%ER! &AN'UN%

201


2/14

I& Introduction

Titratio is the a *etho+ of +eter*ii, the -o-etratio of a u.o/ solutio

(the aalte) rea-ti, it -o*letel /ith a sta+ar+ie+ rea,et that is a solutio of

.o/ -o-etratio (the titrat)

o+u-to*etr titratio is oe of 6arious tes of titratio The +ifferet et/ee

-o+u-to*etr titratio a+ 6olu*etri- titratio is ho/ to +eter*ie the e7ui6ale-e oit

of the solutio !f usi, 6olu*etri- titratio8 the e7ui6ale-e oit is .o/ /he it

-ha,es -olor /he the susta-e is i e7uiliriu* !+i-ators are use+ to *a.e it easier to

see the susta-e has rea-he+ the e7ui6ale-e8 /hile e7ui6ale-e oit of -o+u-to*etr

titratio -a e +eter*ie+ fro* the -o+u-ti6it of solutio that *easure+ a+ this

titratio ot use i+i-ators

II& Aim'

• 'o -o+u-to*etr titratio

• To +eter*ie e7ui6ale-e oit

• To +eter*ie -o-etratios of solutio

III& Principe T*eory o+ Conductometry Titration

,&- Conductometry

o+u-ta-e (%) ease /ith /hi-h -urret flo/s er uit area of -o+u-tor er uit

otetial alie+ 9 is re-iro-al to resista-e (R)

Se-ifi- -o+u-ta-e (): -o+u-ta-e of the o+ of uifor* le,th(l) 9 uifor* area

-ross se-tio(A)

III&. Conductometry Titration

o+u-to*etr titratio is relate+ /ith ele-tri-al -o+u-ti6it8 so /ill e relate+

/ith the rese-e of ios i solutio /hi-h ser6es to -o+u-t ele-tri- -urret i the

solutio This ele-tri- -urret -a ot e asse+ throu,h a solutio that is ot -otaie+

ios8 so that the oele-trolte solutio -a ot -o+u-t ele-tri-it o+u-to*etr

titratio is also hi,hl -orrelate+ /ith the -o-etratio a+ te*erature of the solutio to

e +eter*ie+ the o/er sul So that the te*erature of the solutio *ust e .et i a

state of -ostat8 if the te*erature is -ha,e8 it /ill affe-t if a ,reat -o-etratio that

% ; 1 1 = A


3/14

shoul+ ha6e a ,reat -o+u-ti6it ut it resulti, the s*aller 6ealue of the -o+u-ti6it

e-ause the te*erature ,oes +o/ So that the ios i solutio -a ot stir freel

Tes of -o+u-to*etr titratio +i6i+e+ ito si> tes8 the are: A-i+ ?ase or

eutral titratios8 Rela-e*et or +isla-e*et titratios8 Re+o> titratios8 #re-iitatio

titratios8 o*le>o*etri- titratios a+ Noa7ueous titratios

The e>a*le of ti-al A-i+ ?ase or eutral titratios:

• Stro, a-is stro, ase ( @l 6s NaO@ )

• Stro, a-i+/ea. ase ( @l 6s N@4O@ )

• ea. a-i+Stro, ase ( @3OO@ 6s NaO@ )

• ea. a-i+ /ea. ase ( @3OO@ 6s N@4O@ )


4/14

III&, Principe o+ Conductometry Titration

The ri-ile of -o+u-to*etr titratio is ase+ o the fa-t that +uri, the

titratio8 oe of the ios is rela-e+ the other a+ i6arial these t/o ios +iffer i the

ioi- -o+u-ti6it /ith the result that -o+u-ti6it of the solutio 6aries +uri, the -ourse

of titratio The

e7ui6ale-e

oit *a e

lo-ate+

,rahi-all

lotti, the

-ha,e i -o+u-ta-e as a fu-tio of the 6olu*e of titrat a++e+

I!& Too' and ateria'

!& Procedure' / Critica Step'

Too' ateria'

o+u-to*eter 0 l 081 " of Solutio

Ele-tro+e of !**ersio ell Natriu* @+ro>i+e 081 N

&ea.er %lass 100 *$ @+ro-hlori- A-i+ 081 N

Sra &ottle Aseti- A-i+ 081 N"a,eti- Stirrer O>ali- A-i+

&urette

@otlate Stirrer


5/14

$ift ele-tro+e8 /ash a+ +r it

#ress BSta+ C otto* (ele-tro+e a+ -o+u-to*eter ha6e ee -alirate+)

Si B5ourseC otto* i BoffC ositio a+ -ha,e the 6alue of B5ell 5ostatC util B5ON'C+isla sho/ the 6alue that /e /at (li.e ste D)

Set otto* B5ON'C8 se-if the se-ifi- -o+u-ti6it /hi-h is aroriate to the te*erature

#ress Bte*C otto*8 rea+ the te*erature a+ set the 6alue

'i the ele-tro+e i a solutio of 041 " 5$

Set BFREC i 2 @38 BTE"#C i #t 100 8 BRAN%EC i fi>e+

Set the te*erature -oeffi-iet at a 6alue of 2

Set the -ostat -ell /hi-h is aroriate /ith the ele-tro+e

#ut i**ersio -ell ele-tro+e ito so-.et i a-. of -o+u-to*eter

#ress Bo


6/14

( #i-ture 1 )

!I& Re'ut

A Sta+ar+iatio NaO@


7/14

"ass of O>-ali- : 03 ,r

olu*e : 100 *$

O>ali- a-i+ -o-etratio : 01 N

No NaO@ (*$) (*S


8/14

11 205 DD1

12 21 41

13 215 5HH

14 22 305

15 225 342

1 23 34D1G 235 355

1D 24 401

1H 245 44D

20 25 44

21 255 4HG

22 2 533

23 25 55G

24 2G 5G1

25 2G5 5D5

2 2D 1

2G 2D5 2G2D 2H 3H

2H 2H5 53

30 30 5

31 305 GG

32 31 DD

33 315 HG

34 32 G0H

35 325 G1G

3 33 G2G

3G 335 G35

3D 34 G4H

3H 345 G55

40 35 G3

'eter*iatio -o-etratio of @3OO@ 01 N

No olu*e NaO@ (*$) o+u.ti6itas

(*S


9/14

10 D 4D

11 D5 4G

12 H 45G

13 H5 443

14 10 423

15 105 4031 11 3DG

1G 115 3G

1D 12 34H

1H 125 335

20 13 32D

21 135 32D

22 14 333

23 145 34

24 15 34D

25 155 355

2 1 352G 15 3G2

2D 1G 3D1

2H 1G5 3D4

A %rahi- +eter*iatio -o-etratio of NaO@

3 4 10 12 15 13 14 20

0

0'/

1

1'/

2

2'/

66'/

5

5'/

Volume NaOH (mL)

Konductivity (mS/cm)


10/14

& %rahi- +eter*iatio -o-etratio of @l

10 1/ 20 2/ 60 6/ 50

0

2

5

3

4

10

12

Volume NaOH (mL)

konductivity (mS/cm)

%rahi- +eter*iatio -o-etratio of @3OO@


11/14


12/14

!II& Di''cu'ion

! this ra-ti-e of Bo+u-to*etr titratioC is a *etho+ to +eter*ie the e+ oit

of titratio of a solutio ase+ o io -aailities i +eli6eri, a ele-tri-al -har,e et/ee

t/o ele-tro+es (@!"ATE8 #O$&AN 2014) The ele-tro+e use+ i this e>eri*et is a

i**ersio -ell ele-tro+e Ea-h *aterial is *easure+ the -o+u-ti6it to .o/ its ailit to

,eerate free ios i the *aterial roerties that are .o/ to -o+u-t ele-tri-it (@!"A8

#O$&AN 2012)

&efore *easure*et 8 the tools *ust e -alirate+ first to set the -ell -ostat i

a--or+a-e /ith ele-tro+es that are use+ a+ to re+u-e the error rea+i, to ,et the a--ura-

result ! the -aliratio ro-ess is +oe +ii, the ele-tro+e ito the l solutio 01

"8 e-ause the l solutio 081 " has -o+u-ti6it 6alue that are .o/ i 6ariouste*erature8 so the -ell -ostat -a e +eter*ie+ Fro* the result of -aliratio otaie+

-ell -ostat of 0D1 *1 a+ -o+u-ti6it of 125D *Seri*et are use+ fe/ tes of solutio su-h as O>ali-

A-i+ 01 N to sta+ar+ie+ the NaO@8 solutio of @l 01 N a+ @3OO@ 01 N

Sta+ar+iatio of NaO@ /ith o>ali- a-i+ ai*s to .o/ the sure -o-etratio of

NaO@8 e-ause thereIs a ossiilit of NaO@ ei, h,ros-oi- or eas to -at-h /ater

6aor a+ /ater if it left too lo, it *i,ht -ha,e the -o-etratio &ase+ o the

e>eri*et8 otaie+ the -o-etratio of NaO@ 081G3H N This -o-etratio is +ifferet

/ith the -o-etratio that /ere o the tale (01 N)

After sta+ar+ie+ the solutio of NaO@8 the +o the titratio /ith NaO@ solutio

as the titrat8 /hi-h the titrat /as @l solutio 01 N &efore starti, the titratio first

-he-. the -o+u-ti6it te of @l a+ the result is 0D2 *S the

solutio /ith *a,eti- stirrer to ,et the oti*al -o+u-ti6it te so the ios srea+

e6el


13/14

Fro* the -o+u-to*etri- titratio of NaO@ ? @l otaie+ the -o+u-ti6it

solutio ea-h a++e+ 05 *$ NaO@8 after that *a.e a ,rahi- so the shae of the -ur6e

see*s li.e the letter This shae si,if that at the first of the titratio8 the solutio

-o+u-ti6it te+ to +i*iish a+ after asse+ the e7ui6alet oit8 the -o+u-ti6it te+ to

i-rease This e-ause efore the NaO@ a++e+8 i the solutio -otai the @ ios a+ l

that ea-h of it has their o/ 6alue of the *olar -o+u-ti6it &efore the e7ui6alet oit8

the a*out of @ i the solutio +i*iish e-ause it @2O for*e+ io O@8 /hile the

a*out of NaO@ i-reases e-ause of the a++itio Na has a *olar -o+u-ti6it 6alue

s*aller tha @ so the total -o+u-ti6it 6alue fro* the solutio ,oes +o/ O the e+

oit of titratio8 @ o the solutio has rea-te+ -o*letel /ith O@8 a++e+ *ore

NaO@ /ill i-rease the total -o+u-ti6it 6alue of the solutio8 e-ause the *olar

-o+u-ti6it of O@ are i,,er Fro* the ,rahi-8 otaie+ a e7ui6alet oit o 6olu*e

22 *$8 so it ,et the -o-etratio of @l solutio 012G5 N (it +ifferet /ith the

-o-etratio that /ritte i the lael)

After that8 +o the titratio o @3OO@ solutio 01 N8 the first -o+u-ti6it te of

this solutio is 051 *S


14/14

2 o+u-ti6it 6alue of @l solutio is i,,er tha the -o+u-ti6it 6alue of @3OO@

solutio3 o+u-ti6it 6alue of @l solutio a+ @3@OO@ solutio are 0D2 *S

lab report (conductometric titration)

Documents