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Questions and Answers
What is the purpose of titration methods in Analytical Chemistry?
What is the purpose of titration methods in Analytical Chemistry?
- To determine the volume of a known solution needed to react with the analyte (correct)
- To react completely with the standard solution
- To measure the quantity of analyte in a solution
- To produce a chemical change in the analyte
What is the role of an Analyte (Titrand) in a titration?
What is the role of an Analyte (Titrand) in a titration?
- It is a reagent of known concentration
- It is a standard solution used for titration
- It is a solution of unknown concentration but known volume (correct)
- It is the reagent added from a burette
What is a characteristic of back-titration in titrations?
What is a characteristic of back-titration in titrations?
- It determines the excess of standard solution used to consume an analyte (correct)
- It is used when the rate of reaction between analyte and reagent is fast
- It is performed at the equivalence point
- It involves slowly adding a standard solution from a burette
What is the equivalence point in a titration?
What is the equivalence point in a titration?
What distinguishes an end point from an equivalence point in titrations?
What distinguishes an end point from an equivalence point in titrations?
When is back-titration often required in titrations?
When is back-titration often required in titrations?
In the Volhard method, why is AgCl precipitate filtered before undertaking the back titration?
In the Volhard method, why is AgCl precipitate filtered before undertaking the back titration?
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?
Which type of indicator is commonly used in the Volhard method?
Which type of indicator is commonly used in the Volhard method?
Why does the Mohr method not use for the determination of I-1?
Why does the Mohr method not use for the determination of I-1?
What is the purpose of using specific indicators in redox titrations?
What is the purpose of using specific indicators in redox titrations?
Why is the pH range of 6.5-9 crucial in the Mohr method?
Why is the pH range of 6.5-9 crucial in the Mohr method?
What is the purpose of using an indicator in a titration process?
What is the purpose of using an indicator in a titration process?
Why are weak acids and bases not used as standard reagents in acid-base titrations?
Why are weak acids and bases not used as standard reagents in acid-base titrations?
In a strong acid + weak base titration, what is the pH at the equivalence point?
In a strong acid + weak base titration, what is the pH at the equivalence point?
What type of complex formation occurs in complexometric titrations?
What type of complex formation occurs in complexometric titrations?
What is the role of an ion or molecule that forms a covalent bond with a metal atom by donating a pair of electrons?
What is the role of an ion or molecule that forms a covalent bond with a metal atom by donating a pair of electrons?
Why is EDTA considered a widely used complexometric titrant?
Why is EDTA considered a widely used complexometric titrant?
What type of ligand has two groups available for covalent bonding?
What type of ligand has two groups available for covalent bonding?
