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Finding major species in aqueous solutions!

by parwana
Tags: aqueous, major, solutions, species
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parwana
#1
Mar8-05, 04:37 PM
P: 182
Which of the following are correct statments ?


a) In an aqueous solution of NH4Cl, H2O, NH4+ and Cl-are the major species present

b) In an aqueous solution of NaCH3CO2, H2O, Na+ and HCH3CO2 are the major species present

c) In an aqueous solution of HCN, H2O, H3O+ and CN- are the major species present

d) In an aqueous solution of HNO3, H2O, H3O+ and NO3- are the major species present

e) In a solution of CH3CO2H and NaOH, Na+ is a spectator ion

I know a should be right since those are ions, but dont know about the rest. Help
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Borek
#2
Mar8-05, 05:21 PM
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P: 23,718
Quote Quote by parwana
Which of the following are correct statments ?
You should look at the Ka values for all species and decide, whether acids are dissociated or not. That's the main point.

Try BATE for these calculations - while you should be able to make them by yourself it can help check the results


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