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EDTA (ethylenediaminetetraacetic acid) is considered a secondary standard because it is not typically used as a primary standard due to its complexation properties and the difficulty in accurately determining its purity. Instead, it is standardized against a primary standard, such as calcium carbonate or sodium carbonate, which can be measured with high accuracy. Once standardized, EDTA can then be used reliably in titrations to determine concentrations of metal ions in solution. Its ability to form stable complexes with various metal ions makes it particularly useful in analytical chemistry.
What else can I help you with?
Why edta is secondary stadard?
EDTA (ethylenediaminetetraacetic acid) is not a secondary standard. It is a chelating agent commonly used as a titrant in complexometric titrations to determine metal ions in solution. The stability and selectivity of EDTA complexes make it a primary standard for this purpose.
Which form of EDTA is soluble in water?
EDTA used analytically is usually the disodium salt Na2H4Y 2H2O (372.24 g/mol), which is .... anyremaining EDTA titrant, Ca standard stock solution, and Zn unknown solution ...
Write down the reaction equation of Zn2 plus and EDTA?
The reaction equation between Zn^2+ and EDTA is: Zn^2+ + EDTA → Zn(EDTA)^2-
What is tertrasodium edta?
Tertrasodium EDTA is a chelating and preservative agent.
How many grams of EDTA do you add to make a 3.7 percent EDTA solution?
To make a 3.7% EDTA solution, you would add 3.7 grams of EDTA to 100 mL of solution.
Why edta is secondary stadard?
EDTA (ethylenediaminetetraacetic acid) is not a secondary standard. It is a chelating agent commonly used as a titrant in complexometric titrations to determine metal ions in solution. The stability and selectivity of EDTA complexes make it a primary standard for this purpose.
Why EDTA ia secondary standard?
EDTA is considered a secondary standard because its purity needs to be verified by titration with a primary standard solution to determine its exact concentration. This is due to the fact that EDTA is hygroscopic and its concentration can vary due to absorption of moisture from the atmosphere.
Is standardising EDTA and creating a standard solution the same thing?
Yes, these expressions are synonyms.
Is EDTA considered as a primary standard?
No. Chemical compounds have to fulfill a number of requirements before they can be classified and used as a primary standard: A primary standard in chemistry is a reliable, readily quantified substance. Features of a primary standard include: 1. High purity 2. Stability (low reactivity) 3. Low hygroscopicity and efflorescence 4. High solubility (if used in titration) 5. High equivalent weight 6. Non-toxicity 7. Ready and cheap availability Edta and particularly the sodium salts of EDTA which are frequently used do not fulfill the first requirement. Therefore the solution of EDTA has to be standardised against a known and accepted primary standard.
Which form of EDTA is soluble in water?
EDTA used analytically is usually the disodium salt Na2H4Y 2H2O (372.24 g/mol), which is .... anyremaining EDTA titrant, Ca standard stock solution, and Zn unknown solution ...
What is secondary standard apparatus What are secondary apparatus?
one is specific
What would be a better alternative to zinc sulphate as a primary standard for EDTA?
A better alternative to zinc sulfate as a primary standard for EDTA titrations is typically disodium hydrogen phosphate dihydrate (Na2HPO4∙2H2O), also known as disodium phosphate. This compound is preferred due to its higher purity, stability, and lower tendency to form complexes with EDTA compared to zinc sulfate.
Why edta enhances the permeability by tris?
I don't know the actual answer.But the below information will help you get a right answer.try to improve/correct the answer: HCl is a secondary standard solution.It is used in acid-base solution.On the other hand,EDTA is dissolved in pH 8.0.That's a perfect match for the HCl.EDTA chelates divalent cations and helps to inhibit DNAse.Thus,it is possible to get intake DNA. arif ashraf-biochem-DU-BD
Is k2cro4 a primary or secondary standard and why?
K2CrO4 is a secondary standard. This is because it is not directly titrated against a primary standard but rather is standardized by titration against a primary standard, such as sodium thiosulfate in iodometric titrations.
HSC is tenth or 12th?
HSC is Higher Secondary Certificate which is 12th standard.....10th standard is called as SSC that is Senior Secondary Certificate.
Determination of fe3 with EDTA by photometric titration?
Iron (III) ions form a deep-coloured complex with a maximum absorption at about 525nm; this complex is used as the basis for the photometric titration of iron(III) ion with standard EDTA solution.
Why titration with standard hard water is carried out?
Titration with standard hard water is carried out to determine the concentration of calcium and magnesium ions in water samples. By titrating a known volume of hard water with a standardized solution of EDTA, the amount of calcium and magnesium ions present can be quantified based on the volume of EDTA solution needed to reach the endpoint. This helps in assessing the water hardness and determining the appropriate treatment methods for water softening.
