Finding major species in aqueous solutions!

  1. 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
     
  2. jcsd
  3. Borek

    Staff: Mentor

    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 :wink:
     
    Last edited by a moderator: Aug 13, 2013
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