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Topic: pH of hydrated cation in 0.02M solution of Fe(NO3)2  (Read 6669 times)

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Offline cpp

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pH of hydrated cation in 0.02M solution of Fe(NO3)2
« on: April 15, 2007, 06:45:48 PM »
pH of hydrated cation in 0.02M solution of Fe(NO3)2

Fe(NO3)2 + H2O ---> __A__ + __B__

0.02-x                         0        0

Ka = [A][ B]/[Fe(NO3)]^2

I'm stuck... any help?
« Last Edit: March 04, 2012, 02:04:46 PM by Borek »
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Offline AWK

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Re: pH of hydrated cation in 0.02M solution of Fe(NO3)2
« Reply #1 on: April 16, 2007, 01:15:22 AM »
Fe2+ + nH2O= [Fe(H2O)n]2+
[Fe(H2O)n]2+ = [Fe(H2O)n-1OH]+ + H+
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