Standardization of copper sulphate solution, Biology

Assignment Help:

It involves the standardization of copper sulphate solution. This is same as done in the previous activity.

1)  Pipette accurately 5 ml of Solution A and Solution B in conical flask of 250 ml capacity.

2)  Heat this mixture to boiling on an asbestos gauge and add standard invert sugar solution from the burette about 1 ml less than the expected volume which will reduce the Fehling solution of say, 48 ml.

3)  Add 1 ml methylene blue indicator.

4)  Carry out the titration and complete it within 3 minutes.

5)  The change in blue  to reddish brown colour due to  cuprous oxide formation is taken as the end point.

6)  From the volume of the invert sugar solution used, the strength of CuSO4 is calculated by multiplying  the titrated value with 0.001 (mg / ml of the standard invert sugar solution). This is known as Fehling factor.


Related Discussions:- Standardization of copper sulphate solution

Male gamete and the female gamete in a flowering plant, What is (a) the mal...

What is (a) the male gamete, and (b) the female gamete in a flowering plant?   (a) The male gamete in a flowering plant is the pollen grain (strictly, the gamete is the male

What are the poriferans, Q. What are the poriferans? The phyla Porifera...

Q. What are the poriferans? The phyla Porifera include the simplest creatures of the animal kingdom. Sponges are aquatic sessile beings they are not able to move by themselves

Tropical rain forests - ecosystem, Tropical rain forests - Ecosystem T...

Tropical rain forests - Ecosystem Tropical rain forests occur near the equator. Tropical rain forests are among the most diverse communities on the earth. Both temperature and

Sequence of cardiac activation, Sequence of Cardiac Activation Depolar...

Sequence of Cardiac Activation Depolarisation is initiated by an impulse form the SA node. Impulse spreads through both atria. Inter-atrial conduction and atrial myocardial

Define some precautions for estimation of amount of bacteria, Define some P...

Define some Precautions for Estimation of the Amount of Bacteria? 1. Dilution should be made carefully. 2. Use fresh sterile pipette for making each dilution. 3. Aseptic

Vascular lesions caused by leeches upon the blood vessels, Q. The vascular ...

Q. The vascular lesions caused by leeches upon the blood vessels of their host cause blood naturally to coagulate. How does the leech solve this problem since it could be expected

Explain about the freeze drying Method, Explain about the freeze drying Met...

Explain about the freeze drying Method? The Techniques of freeze-drying have been developed over the past half-century for the purpose of preserving certain biological material

What are the alleles of a gene, What are the alleles of a gene? The Dip...

What are the alleles of a gene? The Diploid individuals have paired chromosomes. For instance in humans there are 23 pairs of chromosomes totaling 46 chromosomes. Every pair co

What is black mold, What is black mold? Mold is a fungus. Black mold is...

What is black mold? Mold is a fungus. Black mold is not an official term, since it is not possible to tell with the naked eye what type of mold is present, and many of them app

Beta - blockers, Beta-blockers have traditionally been considered contraind...

Beta-blockers have traditionally been considered contraindicated in patients with heart failure because they may block the compensatory actions of the sympathetic nervous system wi

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd