Question

Consider the titration of a 26.0 −mL sample of 0.180 M CH3NH2 with 0.155 M HBr. Determine each of the following.

Part A:

the initial pH

Express your answer using two decimal places.

Part B:

the volume of added acid required to reach the equivalence point

Part C:

the pH at 6.0 mL of added acid

Express your answer using two decimal places.

Part D:

the pH at one-half of the equivalence point

Express your answer using two decimal places.

Part E:

the pH at the equivalence point

Express your answer using two decimal places.

Part F:

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

Express your answer using two decimal places.

Answer 1

30-19 ph灯(C) P애 )pt 11.73

с 2c.oxo.13 5618 reem Mwol.of HM- 0.155×5.t b.mmw-1