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You are given 1 liter of each of the following solutions: 1M HCl, 1M NaOH, 1M...

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Chemistry

You are given 1 liter of each of thefollowing solutions: 1M HCl, 1M NaOH, 1M NH3 , 1MHC2H3O2 , 1MNH4Cl,1MNaC2H3O2

a) Describe 4 different methods forpreparing a buffer solution

b) Describe how you would prepare400 ml a buffer with a pH= 4.74 and a buffer with pH= 9.25

c) Draw titration curves for :strong acid-strong base, strong acid-weak base, strong base-weakacid. Label the graph axes, indicate initial pH and pH atequivalence.   

Answer & Explanation Solved by verified expert
4.1 Ratings (820 Votes)

a) The buffer solution consists of a 1) weak acid and its salt with strong base

                                                      2) weak base and its salt with a strong acid.

     1) Mixing 1MNH4Cl & 1M NH3    The volumes used should be different

      2) mixing 1M HC2H3O2 , & 1MNaC2H3O2     The volumes used should be different

      3) Mixing   1M HCl, & 1M NH3   The volumes used should be different

       4) Mixing   1M NaOH & 1MNH4Cl The volumes used should be different

B)   The Ka and Kb values are not given......we need that

  
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