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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...

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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