All of the following regarding Argentometric titration are correct except: a. Chromate indicator is used in Mohr method b. Greater values of Ksp give sharper break and inflection at end point c. Increasing reagent concentration makes the change in pAg larger. d. Volhard's method involves adding excess AgNO3 to the analyte, then back titration with standard SCN solution. e. Fajan's method depends on adsorption of fluorescence indicator on the colloidal precipitate formed Please fill in the space with one of the following characters (a or b or e or d or e)

All of the following regarding Argentometric titration are correct except: a. Chromate indicator is used in Mohr method b. Greater values of Ksp give sharper break and inflection at end point c. Increasing reagent concentration makes the change in pAg larger. d. Volhard's method involves adding excess AgNO3 to the analyte, then back titration with standard SCN solution. e. Fajan's method depends on adsorption of fluorescence indicator on the colloidal precipitate formed Please fill in the space with one of the following characters (a or b or e or d or e)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Which one of the following conditions is always true for a titration of a weak acid with a strong base? Select one: O a. Equal volumes of weak acid and strong base are required to reach the equivalence point. O b. If a colored indicator is used, it must change color rapidly in the weak acid's buffer region. O c. A colored indicator with a pKa less than 7 should be used. O d. The equivalence point occurs at a pH greater than 7.
Ivan B. Garcia A. What is the acid/base ratio? Why is it important in the titrimetric process? B. Why should you boil the sample solution right before reaching the end point? c. Does the primary standard used for the standardization of HCI fit the criteria for a good primary standard? Why or Why not?
Number 2
Which of the following can be used to determine the turning point in a complexometric titration? A. Redox markers B.Adsorption markers C. Eriochrome black T D. Fenolftaleyn
From the given information in the table calculate for both titration1 and 2: 1)moles of thiosulphate titrated (mols) 2) moles of hypochlorite (mols) 3) mass of sodium hypochlorite (g) 4) wt% of sodium hypochlorite
11
Which of the following can be used to determine the turning point in a complexometric titration? A. Redox markers b.Adsorption markers C. Eriochrome black T D. Fenolftaleyn
Concerning EDTA titrations, which of the following is incorrect? 1. OEDTA forms 1:1 complexes with metal ions. 2. OThe most widely used indicators are murexide and Eriochrome Black T. 3. Oln presence of NaOH, EDTA reacts only with Mg2 ions, using murexide indicator. 4. OThe water hardness is usually expressed as CACO3 mg /L water. 5. OEDTA solution was standardized using Zinc Sulfate.
6.) Using the data in this graph: 12 What is the equivalence point? b. What is the half-way point of the titration? c. What is the pH at the half- way point? d. What is the pka? What is Ka for the acid Volume Base (mL) e. being used?
Hello, can you please solve this problem, thank you. Also, please show all your work
A titration experiment has an equivalence point near pH = 9.0. What indicator should be used for this experiment? Section а. Methyl orange (pKa = 3.46) b. Phenol red (pKa = 8.00) c. Thymol blue (pKa = 8.9) d. Thymolphthalein (pKa =9.9) %3D
4. Select/choose an appropriate chemical indicator for the following titration set-up and explain why you chose that indicator: a. weak acid + strong base if pH at equivalence pt = 9 b. Weak base + strong acid if pH at equivalence pt = 5 c. Strong acid + strong base if pH at equivalence pt = 7 Indicator Acid Alkaline Approximate pKa(In) pH range (HIn) (In") Methyl Violet Thymol Blue Methyl Orange Bromophenol Blue Methyl Red Bromocresol Purple Bromothymol Blue yellow blue 0.0 - 1.6 red yellow yellow 1.2 - 2.8 1.7 red 3.1 - 4.4 3.4 yellow red blue 2.9 - 4.6 4.0 yellow purple blue 4.2 - 6.3 5.1 yellow yellow yellow yellow colourless 5.2 - 6.8 6.0 - 7.6 6.8 - 8.4 6.3 7.0 Phenol Red red 7.9 Thymol Blue Phenolphthalein blue 8.0 - 9.6 8.9 red 8.3 - 10.0 9.4 A