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161 solutions

Weak Acid Strong Base Titrations

Q. In the titration of 20.00 mL of 0.200 M HOBr with 0.100 NaOH, what is the volume of base, m mL, needed to reach the equivalence point? (Ka HOBr = 2.5 ×10^-9) A) 30.0 B) 40.0 C) 50.0 D) 20.0 E) 10.0

Solved • Jul 15, 2019

Weak Acid Strong Base Titrations

Q. Calculate the pH after 10.0 mL of 0.40 M NaOH is added to 20.0 mL of 0.50 M HCl. A) 0.70 B) 13.30 C) 13.70 D) 0.30 E) 7.00

Solved • Jul 15, 2019

Weak Acid Strong Base Titrations

Q. A 1.50 L buffer solution is 0.250 M in HF and 0.250 M in NaF. Calculate the pH of the solution after the addition of 0.0500 moles of solid NaOH. Assume no volume change upon the addition of base. The Ka for HF is 3.5 × 10^-4. A) 3.34 B) 3.63 C) 3.57 D) 3.46 E) 2.89

Solved • Jul 15, 2019

Weak Acid Strong Base Titrations

Q. 50.00 mL of 0.10 M HNO2 (nitrous acid, Ka = 4.5 x 10–4) is titrated with a 0.10 M KOH solution. After 35.00 mL of the KOH solution is added, the pH in the titration flask will be

Solved • Jul 13, 2019

Weak Acid Strong Base Titrations

Q. Calculate the pH during the titration of 30.00 mL of 0.1000 M CH3CH2COOH(aq) with 0.1000 M LiOH(aq) after 12 mL of the base have been added. Ka of propanoic acid = 1.3 x 10^-5.

Solved • Jul 8, 2019

Weak Acid Strong Base Titrations

Q. What volume of 0.452 mol L-1 NaOH solution is needed to just completely neutralize a 0.895 mol L-1 solution of CH3COOH with volume 21.0 mL?

Solved • Jun 24, 2019

Weak Acid Strong Base Titrations

Q. A 50-mL aliquot of 0.50 M acetic acid solution (pKa = 4.76) was titrated using 0.50 M NaOH solution. Determine the pH of the solution after addition of a) 40 mL NaOH solution, b) 50 mL NaOH solution, and c) 60 mL NaOH solution.

Solved • Jun 17, 2019