Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain Procedure for Estimation of Sucrose by Fehling Soxhlet Method?
Follow the proceedure enumerated herewith and carry out the experiment:
1. Standard titration (Standardization of Fehling's solution) - Titrate 10 ml of Fehling's solution (5 ml each of Fehling A and B solutions) against standard glucose solution as described in experiment 5. From this titration calculate the amount of glucose required to reduce 10 ml of Fehling's solution.
2. Sample titration - Take the given sample of sucrose solution in 250 ml conical flask. Add 2 ml of Conc HCL and 20-30 ml of distilled water (distilled water is added to prevent charring of the sugar). Heat the flask in a boiling water bath for 20-25 minutes. Remove from the water bath and cool the flask under the tap. Neutralize the acid present in the hydrolyzed solution by adding small amounts (a small pinch at a time) of solid sodium carbonate to the flask until you see no more effervescence in the flask.
Carefully transfer all the contents of this hydrolysis flask to a 100 ml volumetric flask. Ensure that the hydrolysis flask is rinsed with a little (5-10 ml) distilled water 3-4 times and the rinsings are transferred to the volumetric flask. Make up the volume to the 100 ml mark with distilled water. Shake well and use this solution in the burette. Now, take 5 ml of Fehling A and 5 ml of Fehling B in a 100 ml conical flask. Titrate the dilute hydrolyzed sugar solution with Fehling's solution using Fehling Soxhlet increment method.
The aqueous solution with the lowest pH is: Select one: a. 0.01 M HCl. b. 0.1 M acetic acid (pKa = 4.86). c. 0.1 M formic acid (pKa = 3.75). d. 0.1 M HCl. e. 10 t
Consumers Heterotrophs (other nourishing) are incapable of photosynthesis and depend on organic food derived from animals, plants or both. Consumers can be divided into two br
Epitope: As related to the protein antigens, B-cell epitopes comprises the amino acid residues of the protein molecule in which interact directly through the noncovalent bonds wit
Give an example of how two organisms are interdependent. Animals generate carbon dioxide and water, which is required by plants. Accept all reasonable answers.
Carbohydrates Fifty five to seventy per cent of the required energy in animals is derived from carbohydrates. However, fats and proteins can also be broken down and used for
In an investigation to compare the rates at which starch is being broken down by an enzyme (a) what test is used (b) how do you know when the reaction
#question.what is the mechanism of circulatory system .
As the heart rapidly slows during recovery from exercise, PVCs commonly occur and usually have no clinical significance. This may be a time when metabolic adjustments in the heart
comments on acutus
What is the Mode of Nutrition in mosquito?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd