Exam3_Solution

Exam3_Solution - Oxidation ? Reduction ? e Fe ( CN )6 4- b...

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Oxidation ? Reduction ? e b () 4 6 Fe CN ⎡⎤ ⎣⎦ 2+ (6 e - ) High field ligand
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b ( ) () AgCl s Ag aq Cl aq +− + Z ZX YZZ a 16 ( ) 11 0 sp AgI s Ag aq I aq KA g I + ⎡⎤ == × ⎣⎦ ZZX 33 () () AgNO aq Ag aq NO aq NaI aq Na aq I aq + + 78 1 5 ( ) 0 0 0 AgI s Ag aq I aq QA gI + −− + × × = × sp QK >
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a [] log a Ac pH pK HAc =+ c Salts of weak acids and strong Salts of weak acids and strong bases form basic solutions bases form basic solutions 2 HAc NaOH NaAc H O ++ Z ZX YZZ 2 NaAc Na Ac A cH O H A c O H +− + U ZZX
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d d 00 0 0 . 3 3 7 8 0.0592 log 2 0.01 log 0.3378 0.0592 0.0592 10 2.177 cell cell V EK n nE V K VV K = × == =
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c () 2 4 Ni CN 2+ (6 e - ) High field ligand a N 2 6 Ni CN
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d 2 : 0.2 0.1 chng: -.1 -0.1 +0.1 equil: 0.1 0 +0.1 HAc NaOH NaAc H O init +→ + c () 2 2 3 6 = 0.1 60 / 32 = 1.0 32 / 0.1 0.091 1.1 8.1 o o PP g moles CO NH mol gm o l g moles CH COH mol o l P P mmHg χ Δ= = = == =
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c c 000 0.15 ( 0.7 ) 0.85 cell cath anode EEE VVV =− =
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a f Ti k m Δ= e
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b 21 2 44 6 16 () 2 - 2 1 lub 3.7 10 / 3.7 10 3.72 10 99.4 2 3.72 10 8.87 Zn OH Zn OH xx x g mol mol So ility g L Lg L OH pH +−
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Exam3_Solution - Oxidation ? Reduction ? e Fe ( CN )6 4- b...

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