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Topic: acidity/basisity of oxyacids  (Read 6347 times)

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Ashutosh

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acidity/basisity of oxyacids
« on: April 07, 2005, 06:19:32 AM »
How is acidity/basisity of oxyacids is determined?
 e.g.H3PO2 Is monobasic.it is given in TPS book.but it should be dibasic since it has two replasable hydogen atom.
  please help.
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Offline AWK

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Re:acidity/basisity of oxyacids
« Reply #1 on: April 07, 2005, 06:51:32 AM »
Quote from: Ashutosh on April 07, 2005, 06:19:32 AM
How is acidity/basisity of oxyacids is determined?
 e.g.H3PO2 Is monobasic.it is given in TPS book.

This statement is true

Quote
but it should be dibasic since it has two replasable hydogen atom.
  please help.
Your statement is not true

H3PO2 - monobasic
H3PO3 - dibasic
H3PO4 - tribasic
H3P3O9 - tribasic
H4P2O7 - tetrabasic
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AWK

Ashutosh

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Re:acidity/basisity of oxyacids
« Reply #2 on: April 09, 2005, 04:48:26 AM »
Quote from: AWK on April 07, 2005, 06:51:32 AM
This statement is trueYour statement is not true

H3PO2 - monobasic
H3PO3 - dibasic
H3PO4 - tribasic
H3P3O9 - tribasic
H4P2O7 - tetrabasic

   I know this information.But I dont know the criteria for determining the basisity.As suggested above H3PO2 has two replacable hydrogen atoms,then it should be diabasic ???can this hydrogen atoms be replasable ???Is this not right justification ???Any other criteria ???
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