A 111.8 mL sample of 0.100 M methylamine (CH3NH2;Kb=3.7×10−4) is titrated with 0.245 M HNO3. Calculate the pH after the addition of each of the following volumes of acid.
Part A
0.0 mL
Part B
22.8 mL
Part C
45.6 mL
Part D
68.4 mL
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