Electrochemical cells results

7/23/2019 Electrochemical cells results

1/84

Variable half cell usedPotential di

Iron(II) Sulphate 1.16 1.15

in(II) Sulphate !."5 !."6#lu$iniu$ Sulphate - 1.%6

&ead(II) 'itrate !."1 !."

inc Sulphate 1.5* 1.5%

+opper(II) sulphate !.%6 !.%,

Previous reading with oxidised metal

#lu$iniu$ Sulphate - 1.15

1 0.5

0.5

0.25

0.1

0.01

1 $ol d$-* !.5 $ol d$-*

Iron(II) S


2/84

0.01

+onc

Potential dierence/V

#lu$iniu$



3/84

0.01

+once

0.01

R ! 0.9102124714

inc Sulp

+oncen



4/84


5/84

rence of silver-variable cell/ V

1.1% 1.1 1.1

!.", !."" 1.!!1.% 1.5! 1.5

!."* !."% !."6

1.55 1.5, 1.5

!.% !.%" !.51

1.1! 1.15 1.1"

0.25 0.1 0.01

!.5 $ol d$-* !.1 $ol d$-* !.!1 $ol d$-*

lphate cell


6/84

0.1

entration of cell/ $ol d$-*

1

1

1

1

1

1

1

ulphate cell


7/84

0.11

1

1

tration of cell/ $ol d$-*

0.1

1.

1.

1.

1.

1.

1.

1.

1.

1.

hate cell

tration of cell/ $ol d$-*


8/84


9/84

Potential di

irst trial

! !.%5

1 !.%5 !.%5

* !.%5

% !.%6

5 !.%6

6 !.%6

, !.%6

!.%6

" !.%,

1! !.%,15 !.%

! !.5!

5 !.5

*! !.5%

Volu$e of 0# solution added/c$*

1.16

1.17


10/84

1

1.1

1.11

1.12

1.13

1.14

1.15

.46

.47

.48

.49

1.5

.51

.52

.53

Potential dierence/

Potential dierence/


11/84

1.43

.44

.45

1

.5

51

52

53

54

55

56

57

58

59

Potential dierence/


12/84


13/84

rence of silver-copper cell/V

Second trial #verae

!.%5 !.%5

- !.%5- !.%5

- !.%5

- !.%6

!.%6 !.%6

- !.%6

- !.%6

- !.%6

- !.%,

!.%6 !.%,!.% !.%

!.51 !.51

!.5* !.5*

!.5% !.5%

"#x$ ! %0.0110776458 ln#x$ & 0.9540886033

in(II) Sulp


14/84

0.01

+oncentrat

R ! 0.9835466661

&ead(II) 'it


15/84

0.01

+oncentrat

0.01

R ! 0.9835466661

+opper(II) Su

+oncentra

V


16/84


17/84

Potential dierence of silver-c

irst trial Second trial

! !.%5 !.%5

1 !.%6 !.%6 !.%6 !.%,

* !.%, !.%

% !.%, !.%

5 !.%" !.5!

6 !.5! !.51

, !.5! !.51

!.51 !.5

" !.51 !.5

1! !.51 !.5*

Volu$e of #$$onia solution added/c$*

1

1.01

ate cell


18/84

0.1 1

0.92

0.93

0.94

0.95

0.96

0.97

0.98

0.99

ion of cell/ $ol d$-*

0.91

0.92

0.93

0.94

0.95

0.96

0.97

rate cell


19/84

0.1 10.88

0.89

0.9


0.1 1

0.43

0.44

0.45

0.46

0.47

0.48

0.49

0.5

0.51

0.52

lphate cell



20/84


21/84

pper cell/V

#verae

!.%5 !

!.%6 1!!.%, !

!.% *!

!.% %!

!.5! 5!

!.51

!.51

!.5

!.5

!.5

Volu$e of distilled 2ater added/c$*


22/84

0

1.06

1.08

1.1

1.12

1.14

1.16

1.18

1.2

1.22

.


1.55

1.56

1.57

1.58

1.59

1.6



23/84

0

1.43

1.44

1.45

1.46

1.47

1.48

1.49

1.5

1.51

1.52

1.53


0.00

1.5

1.51

1.52

1.53

1.54


24/84

0

0.43

0.44

0.45

0.46

0.47

0.48

0.49

0.5

0.51

0.52

0.53



25/84

Potential dierence of silver-copper cell/V

irst trial Second trial #verae

!.%! !.%! !.%!

!.% !.%1 !.%!.%* !.% !.%*

!.%5 !.%% !.%5

!.%5 !.%5 !.%5

!.%6 !.%6 !.%6

Iron(II) Sulphate cell


26/84

0.2 0.4 0.6 0.8 1

+oncentration of cell/ $ol d$-*

inc Sulphate cell


27/84

0.2 0.4 0.6 0.8 1

#lu$iniu$ Sulphate cell


.20 0.40 0.60 0.80 1.00



28/84

0.2 0.4 0.6 0.8 1

+opper(II) Sulphate cell


29/84

1".5

*.!%1.!

5!.5

61.!

,!.5

1.5

e$perature of cells/3+


30/84

1.2


31/84

1.2

1.20


32/84

1.2


33/84

Potential dierence of silver-copper cell/V

!.%5

!.%% 'hite text!.%% (lue text

!.%* (la)* text

!.%* +ellow text

!.% Red text

!.%1

1

0.5

0.25

0.1

0.01

1.01

1.02

in(II) Sulp


34/84

0 0.2 0.4

0.92

0.93

0.94

0.95

0.96

0.97

0.98

0.99

+oncentrat


0.91

0.92

0.93

0.94

0.95

0.96

0.97

0.98

&ead(II) 'it



35/84

0 0.2 0.4

0.88

0.89

0.9

+oncentrat


36/84


37/84

!Reading that is in)reasing

!Reading that is de)reasing

!,ta-le reading

21.5/

22.5/

20.0/

22.0/

24.0/

ate cell


38/84

0.6 0.8 1

on of cell/ $ol d$-*

ate cell


39/84

0.6 0.8 1



40/84


41/84

Variable half cell usedPotential dierence of silver-variable cell/ V

Iron(II) Sulphate 1.16

in(II) Sulphate !."5#lu$iniu$ Sulphate 1.%5 (e4trapolated)

&ead(II) 'itrate !."1

inc Sulphate 1.5*

+opper(II) sulphate !.%6

R ! a

"#x$ ! % 0.012708386x & 1.


42/84

1.2%5 %4.5 %4

"#x$ ! 0.0088768529x & 1.1


"#x$ ! % 0.0110776458x &

"#x$ ! % 0.012708386x & 1.



43/84

1.2 %5 %4.5 %4


44/84


45/84

le half celPotential dierence of silv

Iron(II) S 1.16 1.15 1.1%

in(II) Su !."5 !."6 !.",#lu$iniu - 1.%6 1.%

&ead(II) !."1 !." !."*

inc Sulp 1.5* 1.5% 1.55

+opper(II !.%6 !.%, !.%

1 $ol d$ !.5 $ol d!.5 $ol

16

Iron(II) Sulphate cell


46/84

%3.5 %3 %2.5 %2 %1.5

539556047


.5340886033

53

inc Sulphate cell


47/84

%3.5 %3 %2.5 %2 %1.5



48/84


49/84

r-variable cell/ V

1.1 1.1 0.14842 0.139762 0.131028 0.113329 0.113329

!."" 1.!! %0.051293 %0.040822 %0.03046 %0.01005 01.5! 1.5 0.378436 0.392042 0.405465 0.41871

!."% !."6 %0.094311 %0.083382 %0.07257 %0.061875 %0.040822

1.5, 1.5 0.425268 0.431782 0.438255 0.451076 0.457425

!.%" !.51 %0.776529 %0.755023 %0.73397 %0.71335 %0.673345

1 0 1.%0.5 %0.69315

0.25 %1.38629

0.1 %2.30259

0.01 %4.60517

!.1 $ol d !.!1 $ol d$-*

1.22

1.24


50/84

%1 %0.5 0

1.06

1.08

1.1

1.12

1.14

1.16

1.18

1.2

%5


1.53

1.54

1.55

1.56

1.57

1.58

1.59

1.6



51/84

%5


%1 %0.5 0

1.5

1.51

1.52

%5


52/84

%5



53/84

Variable half cell adient of silver/variable c

Iron(II) Sulphate !.!!"

in(II) Sulphate -!.!111+opper(II) sulphate -!.!1!,

&ead(II) 'itrate -!.!1!,

inc Sulphate -!.!111

#lu$iniu$ Sulphate -!.!1%5

1.% 1.5! 1.5

"#x$ ! % 0.0110776458x & 0.9540886033

"#x$ ! % 0.012708386x & 0.95

in(II) Sulphate cel


54/84

%4.5 %4 %3.5 %3 %2.5

'atural lo of +oncentrati

"#x$ ! % 0.0106816958x & 0.9128002995

"#x$ ! % 0.012708386x & 0.91

&ead(II) 'itrate cel


55/84

%4.5 %4 %3.5 %3 %2.5

"#x$ ! % 0.0145107035x & 1.4573973628

"#x$ ! % 0.0109470072x & 1.4704042729

"#x$ ! % 0.0084722573x & 1.46

#lu$iniu$ Sulphate

+oncentration of cell/ $ol

%4.5 %4 %3.5 %3 %2.5



56/84

%4.5 %4 %3.5 %3 %2.5

"#x$ ! % 0.0106816958x & 0.4628002995

"#x$ ! % 0.012708386x & 0.46



57/84

ected radient usin 'bet2een calculated

-!.!1, !.!16

-!.!1, !.!!16-!.!1, !.!!!

-!.!1, !.!!!

-!.!1, !.!!16

-!.!!5 -!.!!6!

1.01

1.02

l


58/84

%2 %1.5 %1 %0.5 0

0.92

0.93

0.94

0.95

0.96

0.97

0.98

0.99

n of cell/ $ol d$-*

0.91

0.92

0.93

0.94

0.95

0.96

0.97

0.98

l


59/84

%2 %1.5 %1 %0.5 0

1.43

1.44

1.45

1.46

1.47

1.48

1.49

1.5

1.51

1.52

1.53

ell

$-*

%2 %1.5 %1 %0.5 0

0.88

0.89

0.9

$-*


60/84

%2 %1.5 %1 %0.5 00.43

0.44

0.45

0.46

0.47

0.48

0.49

0.5

0.51

0.52

0.53

$-*


61/84

Variable half cell used

1 * 7ean 1

Iron(II) Sulphate 1.16 - - 1.16 1.15in(II) Sulphate !."6 !."5 !."5 !."5 !."6

#lu$iniu$ Sulphate - - - - 1.%5

&ead(II) 'itrate !."1 !."1 - !."1 !."1

inc Sulphate 1.5* 1.5 - 1.5* 1.5%

+opper(II) sulphate !.%6 !.%, !.%6 !.%6 !.%,

1 $ol d$-*


62/84


63/84


64/84


65/84

Potential dierence of silver-variable cell/ V

* 7ean 1 * 7ean 1 *

- - 1.15 1.1% - - 1.1% 1.1 - -!."6 !."6 !."6 !."6 !.", !.", !.", !." !."" 1.!!

1.%, - 1.%6 1.% 1.% - 1.% 1.%" 1.5! -

!." - !." !."* !."* - !."* !."5 !."* -

1.5% - 1.5% 1.5% 1.55 - 1.55 1.56 1.5 -

!.%6 !.%, !.%, !.%, !.% !.% !.% !.%" !.5! !.%

!.5 $ol d$-* !.5 $ol d$-* !.1 $ol d


66/84


67/84


68/84


69/84

7ean 1 * 7ean

1.1 1.1 - - 1.1!."" 1.!! 1.!1 1.!! 1.!!

1.5! 1.5 1.51 - 1.5

!."% !."6 !."5 - !."6

1.5, 1.5 1.5 - 1.5

!.%" !.5! !.51 !.51 !.51

-* !.!1 $ol d$-*


70/84


71/84


72/84


73/84

Variable half cell usedPotential dierence of silver-v

1.!! !.5! !.5

Iron(II) Sulphate 1.16 1.16!,1" 1.1,,61,56*"

in(II) Sulphate !."5 !."5!,1" !."6,61,56*"#lu$iniu$ Sulphate 1.%6 1.%65,51* 1.%,1,%5!%6

&ead(II) 'itrate !."1 !."1!,1" !.",61,56*"

inc Sulphate 1.5* 1.5*!,1" 1.5%,61,56*"

+opper(II) sulphate !.%6 !.%6!,1" !.%,,61,56*"


74/84


75/84


76/84


77/84

ariable cell/ V

!.1! !.!1

1.1"61%! 1.15%!%

!.","61%! 1.!!5%!%1.%,"5!!"*5 1.%""!1616"

!."*"61%! !."65%!%

1.55"61%! 1.55%!%

!.%"61%! !.515%!%


78/84


79/84


80/84


81/84

P


82/84


83/84


84/84

Electrochemical cells results

Documents

Transcript of Electrochemical cells results