Titration Questions CHM1046

A chemist is titrating 131.5mL of a 0.830000M solution of dimethylamine ((CH3)2NH) with a 0.6900M solution of HClO4. The pKb of dimethylamine is 3.27. Calculate the pH of the solution after the chemist has added 173.6mL of the HClO4

solution to it. Round answer to 2 decimal places.

A chemist is titrating 227.4mL of a 0.1900M solution of aniline (C6H5NH2) with a 0.1300M solution of HNO3. The pKb of aniline is 9.37. Calculate the pH of the base solution after the chemist has added 98.3mL of the HNO3 solution to it. Round answer to 2 decimal places.

A chemist titrates 228.0mL of a

0.85367863M nitric acid HNO3 solution with 0.2678534M KOH solution at 25°C. Calculate the pH at equivalence. Round answer to 2 decimal places.

A chemist titrates 80.0mL of a 730.7mM acetic acid (HCH3CO2) solution with 665.9mM KOH solution at 25°C. Calculate the pH at equivalence. The pKa of acetic acid is 4.76.

• 4.85

• 9.15

• 4.67

• 9.30

• None of the above :)

A student is titrating 98.9mL of a 0.4200M solution of propionic acid (HC2H5CO2) with a 0.5100M solution of NaOH. The pKa of propionic acid is 4.89. Calculate the pH of the acid solution after the student has added 37.6mL of the NaOH solution to it. Round to 2 decimal places.

An analytical chemist is titrating 101.4mL of a 0.5100M solution of propionic acid (HC2H5CO2) with a 0.8800M solution of NaOH. The pKa of propionic acid is 4.89. Calculate the pH of the acid solution after the chemist has added 68.12mL of the NaOH solution to it. Round to 2 decimal places.

An analytical chemist is titrating 183.8mL of a 720.0mM solution of benzoic acid (HC6H5CO2) with a 1.200M solution of NaOH. The pKa of benzoic acid is 4.20. Calculate the pH of the acid solution after the chemist has added 38.76mL of the NaOH solution to it. Round your answer to 2 decimal places.

• 4.06

• 10.07

• 4.12

• None of the above :)

A chemist titrates 230.0mL of a 0.5874M lidocaine (C14H21NONH) solution with 0.7990M HCl solution at 25°C. Calculate the pH at equivalence. The pKb of lidocaine is 7.94. Round to 2 decimal places.

An chemist is titrating 215.1mL of a 0.7100M solution of piperidine (C5H10NH) with a 0.3200M solution of HNO3. The pKb of piperidine is 2.89. Calculate the pH of the base solution after the chemist has added 351.5mL of the HNO3 solution to it. Round to 2 decimal places.

• 3.34

• 7.00

• 9.12

• 10.66

An analytical chemist is titrating 69.0mL of a 0.2000M solution of isopropylamine (CH32CHNH2) with a 0.1900M solution of HNO3. The pKb of isopropylamine is 3.33. Calculate the pH of the base solution after the chemist has added 19.8mL of the HNO3 solution to it. Round to 2 decimal places.