Podcast
Questions and Answers
What is the preferred form of EDTA for preparing the standard solution?
What is the preferred form of EDTA for preparing the standard solution?
- Free acid
- Hygroscopic form
- Disodium salt (correct)
- Metal-bound form
What is the molecular weight of EDTA?
What is the molecular weight of EDTA?
- 372.24g/mol (correct)
- 291.40g/mol
- 419.33g/mol
- 284.16g/mol
What is the role of EDTA in products such as detergents and food additives?
What is the role of EDTA in products such as detergents and food additives?
- Increase metal content in food
- Enhance metal-catalyzed oxidation of food
- Prevent metal-catalyzed oxidation of food (correct)
- Accelerate food spoilage
In what type of container are EDTA solutions best stored?
In what type of container are EDTA solutions best stored?
What is the function of EDTA in complexometric titration?
What is the function of EDTA in complexometric titration?
Flashcards
EDTA form for standard solution
EDTA form for standard solution
Disodium salt is the preferred form of EDTA for preparing standard solutions.
EDTA molecular weight
EDTA molecular weight
The molecular weight of EDTA is 372.24g/mol.
EDTA role in detergents/food
EDTA role in detergents/food
EDTA prevents metal-catalyzed oxidation in food products.
Best EDTA storage container
Best EDTA storage container
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EDTA in complexometric titration
EDTA in complexometric titration
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Study Notes
EDTA Characteristics
- The preferred form of EDTA for preparing the standard solution is the disodium salt (Na2H2EDTA).
EDTA Properties
- The molecular weight of EDTA is 292.24 g/mol.
EDTA Applications
- EDTA plays a role in products such as detergents and food additives, where it acts as a chelating agent, removing ions that can interfere with their functionality.
EDTA Storage
- EDTA solutions are best stored in glass or polyethylene containers, as EDTA can react with metals and contaminate the solution.
EDTA in Complexometric Titration
- The function of EDTA in complexometric titration is to react with metal ions to form a stable, water-soluble complex, allowing for the precise measurement of the metal ion concentration.
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