Podcast
Questions and Answers
What is the major difference between the equivalence point and the end point in a titration?
What is the major difference between the equivalence point and the end point in a titration?
- Color change
- Chemical reaction
- Volume difference (correct)
- Physical change
Why are weak acids and bases never used as standard reagents in acid-base titrations?
Why are weak acids and bases never used as standard reagents in acid-base titrations?
- They are colorless
- They react incompletely with analytes (correct)
- They are too stable
- They are too reactive
Why are HCl and NaOH classified as secondary standard solutions?
Why are HCl and NaOH classified as secondary standard solutions?
- They are less pure than primary standards (correct)
- They are highly stable
- They react selectively with analytes
- They react completely with analytes
In complexometric titration, what forms a covalent bond with a metal atom to produce a complex?
In complexometric titration, what forms a covalent bond with a metal atom to produce a complex?
What type of acid-base titration results in a solution with pH greater than 7 at the equivalence point?
What type of acid-base titration results in a solution with pH greater than 7 at the equivalence point?
Why is EDTA commonly used as a complexometric titrant?
Why is EDTA commonly used as a complexometric titrant?
What type of ligand has two groups available for covalent bonding?
What type of ligand has two groups available for covalent bonding?
In precipitation titration, what method is based on the formation of slightly soluble precipitates?
In precipitation titration, what method is based on the formation of slightly soluble precipitates?
Which method of detection of endpoint utilizes adsorption indicators?
Which method of detection of endpoint utilizes adsorption indicators?
What does an acid-base indicator do in a titration?
What does an acid-base indicator do in a titration?
Why is AgCl ppt. in the Volhard method filtered before undertaking the back titration?
Why is AgCl ppt. in the Volhard method filtered before undertaking the back titration?
In the Volhard method, why must the solution be a strong acid?
In the Volhard method, why must the solution be a strong acid?
Why is the pH range of Mohr method titration specified to be between 6.5-9?
Why is the pH range of Mohr method titration specified to be between 6.5-9?
Why is the Volhard method rarely used nowadays?
Why is the Volhard method rarely used nowadays?
Why does the first drop of excess Ag+1 react with Fluorescein indicator in the Volhard method?
Why does the first drop of excess Ag+1 react with Fluorescein indicator in the Volhard method?
Why does the Mohr method not use CrO4-2 for titrations involving Ag+1?
Why does the Mohr method not use CrO4-2 for titrations involving Ag+1?
Why does the Volhard method not use for determination of SCN-1?
Why does the Volhard method not use for determination of SCN-1?
What is the purpose of using a strong acid solution in the Volhard method?
What is the purpose of using a strong acid solution in the Volhard method?
Why do types of redox indicators differ based on their oxidized and reduced forms' colors?
Why do types of redox indicators differ based on their oxidized and reduced forms' colors?
In oxidation-reduction reactions, what characterizes an oxidizing agent?
In oxidation-reduction reactions, what characterizes an oxidizing agent?
What is the purpose of titration methods in Analytical Chemistry?
What is the purpose of titration methods in Analytical Chemistry?
What is the function of a standard solution in volumetric titrations?
What is the function of a standard solution in volumetric titrations?
When is back-titration used in titration methods?
When is back-titration used in titration methods?
What is the Equivalence point in a titration?
What is the Equivalence point in a titration?
Which statement best describes an Analyte in titration methods?
Which statement best describes an Analyte in titration methods?
In a volumetric titration, why is it important to measure the volume of the standard solution needed for complete reaction?
In a volumetric titration, why is it important to measure the volume of the standard solution needed for complete reaction?
What does the End Point indicate in a titration?
What does the End Point indicate in a titration?
How is back-titration different from direct titration?
How is back-titration different from direct titration?
What is the role of the burette in volumetric titrations?
What is the role of the burette in volumetric titrations?
When is a back-titration preferred over direct titration?
When is a back-titration preferred over direct titration?
