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Ask iit jee aieee pet cbse icse state board community Community Discussion Question: TOUGH QUESTION
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[Post New]3 Mar 2008 21:58:01 IST
    Subject: TOUGH QUESTION
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ramratan (0)

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CONC.OF NH^4OH AND NH^4CL IN ASOLUTION IS 0.1M EACH.CALCULATE CONCENTRATION OF HYDROGEN AND HYDROXYL IONS IF THE DISSOCIATION CONSTANT OF NH^4OH IS 7.2*10^ -10.
    
[Post New]4 Mar 2008 12:45:18 IST
    Subject: TOUGH QUESTION
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dibyasingh (4)

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tough question i think some data is missing
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[Post New]4 Mar 2008 13:07:44 IST
    Subject: TOUGH QUESTION
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rockey (168)

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treat it as buffer and solve,
the eq. is ph =pka + log(salt/base)

( ) represents conc.


hope its clear
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[Post New]4 Mar 2008 15:54:46 IST
    Subject: Re:TOUGH QUESTION
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dev_22oct (1384)

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the given buffer is basic for which the henderson equation is applied
 
pOH = -logkb + log[salt]/[base]
 
pOH=-log7.2x10-10 +log 1
 that w'll give u pOH frm which u can calculate [OH]- by using pOH=-log[OH]-
pH=14 -pOH
n from pH u can calculate [H]+
Devendra Kumar Shukla
M.Sc physical Chemistry
Currently working in Daswani classes
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[Post New]5 Mar 2008 22:03:57 IST
    Subject: TOUGH QUESTION
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ramratan (0)

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sir could you solve it .i want to know the exact answer
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