Problem: Calculate the pH of a 4.6 M solution of aniline (C6H5NH2; Kb= 3.8x10-10)a) 4.38b) 9.62c) 5.24d) 8.76

FREE Expert Solution

We’re being asked to calculate the H of a 4.6 M aniline solution.


Since aniline has a low Kb value, it’s a weak base. Remember that weak bases partially dissociate in water and that bases accept H+ from the acid (water in this case). The dissociation of aniline is as follows:


aniline (aq) + H2O(l)  OH(aq) + aniline-H+(aq); Kb = 3.8x10-10


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Problem Details

Calculate the pH of a 4.6 M solution of aniline (C6H5NH2; Kb= 3.8x10-10)

a) 4.38

b) 9.62

c) 5.24

d) 8.76

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