please answer both 1 p QUESTION 4 A 29.9 mL. sample of 0.299 M methylamine, CH3NH2,...

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Question

please answer both
1 p QUESTION 4 A 29.9 mL. sample of 0.299 M methylamine, CH3NH2, is titrated with 0.331 M hydroiodic acid, HI at 25 °C. (Kb f

Answer 1

Answer #1

• ® at mid point pH apka Kb = 4.2 X10 4 pkba -10g Kb = -log (Leo 2 x104) = 3.38 pka = 14-pko pka = 14-3-38 = 10-62 = pH v at

Answer 2

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