Please correct answer and don't used hand raiting For questions 1 to 3, consider the titration of 50.00 mL 0.020 M Ba2+ with 0.040 M EDTA (KMY = 5.80 × 107) in a solution buffered to pH 10.0 (a4 = 0.35):1) (Short answer) Calculate pBa (report to at least 3 decimal places) at the equivalence point.

α4=0.35 means that at pH 10.0, 35% of the total EDTA exists as the active form Y4−We use this…

Answered: For questions 1 to 3, consider the…

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter16: Reactions Between Acids And Bases

Section: Chapter Questions

Problem 16.54QE

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Fifty cm3 of 1.000 M nitrous acid is titrated with 0.850 M NaOH. What is the pH of the solution (a) before any NaOH is added? (b) at half-neutralization? (c) at the equivalence point? (d) when 0.10 mL less than the volume of NaOH to reach the equivalence point is added? (e) when 0.10 mL more than the volume of NaOH to reach the equivalence point is added? (f) Use your data to construct a plot similar to that shown in Figure 14.10 (pH versus volume NaOH added).
When 40.00 mL of a weak monoprotic acid solution is titrated with 0.100-M NaOH, the equivalence point is reached when 35.00 mL base has been added. After 20.00 mL NaOH solution has been added, the titration mixture has a pH of 5.75. Calculate the ionization constant of the acid.
In an acid-base titration, 21.16 mL of an NaOH solution are needed to neutralize 20.04 mL of a 0.0997 M HCl solution. To find the molarity of the NaOH solution, we can use the following procedure: First note the value of MH in the HCl solution. ____________M Find MOH- in the NaOH solution. Use Eq.3. ____________M Obtain MNaOH from MOH. ____________M
A good buffer generally contains relatively equal concentrations of weak acid and conjugate base. If you wanted to buffer a solution at pH = 4.00 or pH = 10.00, how would you decide which weak acidconjugate base or weak baseconjugate acid pair to use? The second characteristic of a good buffer is good buffering capacity. What is the capacity of a buffer? How do the following buffers differ in capacity? How do they differ in pH? 0.01 M acetic acid/0.01 M sodium acetate 0.1 M acetic acid/0.1 M sodium acetate 1.0 M acetic acid/1.0 M sodium acetate
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Titration Titrant Primary Standard I. Complete the table Write your answers in the answer booklet provided. Color change/end point Indicator detection Acid-Base (1) KHP Phenolphthalein (8) HCI (3) Phenolphthalein (9) Redox Complexometric KMnO4 EDTA (4) (5) (10) CaCO3 (6) (11) Precipitation (2) NaCl (7) Formation of brick red ppt (Mohr Method) Na2CO3 starch Fill in the table above with the choices from the answer bank that follows. You can select one choice more than once or not at all. If the answer is not found below, write "none". KSCN Fe3+ yellow to orange AgNO3 NaOH yellow green to pink K₂CrO4 Red to yellow pink to colorless KMnO4 formation of red complex deep blue to colorless colorless to pink/red AS2O3 KSCN EBT purple to colorless colorless to purple red to blue Na2C2O4 Cu Acid-Base Fluorescein Argentometric colorless to deep blue Volhard

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For questions 1 to 3, consider the titration of 50.00 mL 0.020 M Ba2+ with 0.040 M EDTA ( KMY = 5.80 × 107) in a solution buffered to pH 10.0 (a4 = 0.35): 1) (Short answer) Calculate pBa (report to at least 3 decimal places) at the equivalence point.