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rishipratimm (485)

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given
Ag + I- => AgI + e ; E0=0.152 V
Ag => Ag+ + e ; E0 = -0.800V
Find the value of log Ksp for AgI
(2.303 RT / F = 0.059 V )
 
a) -16.13
 
b) -8.12
 
c)8.612
 
d)-37.83

"Many of the things you can count,dont count....
Many of the things you cant count,really do count...."-Albert Einstein

"The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them"-William Bragg

"An inexplicable fact is infinitely preferable to an incomprehensible mystery"-F. Soddy


RISHIPRATIM MAZUMDAR
NIT DURGAPUR
1ST YEAR,ELECTRONICS AND COMMUNICATIONS
    
karthik2007 (3355)

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Easy one !!!

The cell reaction reduces to AgI ==> Ag++I-

Hence, at equillibrium (Conc of AgI = 1)

-.952 = 0.059logKsp

Hence, we get logKsp = -16.13

Option a)

Will nip in at times to solve problems :)
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ashgirl (1429)

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Ecell = Ecathode - E anode = 0.152 + 0.800 =  0.952
 
G = -nFE= - 2.303 RTlog Kc
 
put the values, u shud get the ans....

Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.


Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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karthik2007 (3355)

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@Ashgirl - You've gone totally wrong dudette... He wants the Solubility product, not the equillibrium constant!!!

Will nip in at times to solve problems :)
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ashgirl (1429)

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oh..i am so sry....didnt read it properly!!

Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.


Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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