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Why sodium carbonate is used in preparation of thiosulphate solution?
Sodium carbonate is used in the preparation of thiosulfate solution to help maintain a stable pH level during the reaction. It acts as a buffer to prevent large fluctuations in pH that could affect the reaction rate or yield of the thiosulfate solution. Additionally, sodium carbonate helps to dissolve the thiosulfate salt more effectively in water during the preparation process.
What is a titration-quenching?
Titration quenching is a process where a substance is added to a solution to stop a chemical reaction or change in pH during a titration experiment. This substance helps to stabilize the solution at the endpoint of the titration, ensuring accurate results.
What is the use of potassium dihydrogen phosphate in Drabkins solution?
Potassium dihydrogen phosphate is used in Drabkin's solution to act as a buffer, maintaining the pH of the solution around 7.4. This helps stabilize the hemoglobin and prevent its oxidation during the hemoglobin assay or blood cell counts.
Is the preparation of sugar solution physical change?
Yes, the preparation of a sugar solution is considered a physical change. This is because the sugar molecules remain intact during the process and there is no chemical reaction involved.
Why is mitochondria kept in sucrose solution when extracted from cell?
Mitochondria are kept in sucrose solution to maintain their osmotic balance and prevent them from swelling or shrinking due to changes in their external environment. The sucrose solution helps to stabilize the mitochondria and maintain their structural integrity during the extraction process.
How does a kowari survive in the desert?
Sleeps in burrows during the day
Why is Ammonia solution added while preparing EDTA solution?
Ammonia solution is added to increase the pH of the solution to create a favorable environment for the formation of stable metal-EDTA complexes. This helps in improving the efficiency of complexation and enhances the chelating properties of EDTA.
What are the purposes of the Neutralization Solution in plasmid DNA?
The neutralization solution is used to balance the pH after the addition of an alkaline lysis solution during plasmid DNA extraction. This helps to stabilize the DNA for subsequent use or storage. Additionally, neutralization stops the denaturation process that occurs during lysis, preserving the integrity of the DNA.
What is the use salting out in the preparation of soap?
Salting out is used in the preparation of soap to help separate the soap from the glycerin during the saponification reaction. By adding salt to the soap mixture, the soap molecules are forced to come out of solution, making it easier to separate them from the glycerin layer.
Why is 2 4 DiNitroPhenylHydrazone washed with methanol when prepared?
2,4-dinitrohydrazine used during the preparation is a base and may form hydrazonium ion in solution, for the removal of this methanol is used.
Where do desert animals hide during a hot day?
in the sand and burrows
How does a armadillo adapts?
they live in burrows during the the day and to hide from predetors
