A buffer solution contains dissolved C6H5NH₂ and C6H5NH3Cl. The initial concentration of C6H5NH₂ is 0.50 M and the pH of the

Question

A buffer solution contains dissolved C6H5NH₂
and C6H5NH3Cl. The initial concentration of
C6H5NH₂ is 0.50 M and the pH of the buffer is
4.20. Determine the concentration of
C6H5NH3* in the solution. The value of Kb for
C6H5NH₂ is 3.8 × 10-¹⁰.
Initial (M)
Change (M)
Equilibrium (M)
Let x represent the original concentration of
C6H5NH3* in the water. Based on the given
values, set up the ICE table in order to
determine the unknown.
C6H5NH₂(a+ H₂O(1) OH¯(aq) +C6H5NH3†(a

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