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Consider the titration of a 26.0-mL sample of 0.170 M CH3NH2 with 0.145 M HBr. (The...

Consider the titration of a 26.0-mL sample of 0.170 M CH3NH2 with 0.145 M HBr. (The value of Kb for CH3NH2 is 4.4×10−4.)

Initial pH- 11.94

Volume of added acid required to reach the equivalence point: 30.5 mL

Determine the pH after adding 5.0 mL of acid beyond the equivalence point.

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