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!
Define Procedure for Estimation of Iron in the Solution?
Carry out the experiment following the steps enumerated herewith:
1. Weigh 702 mg of reagent grade ferrous ammonium sulphate (NH4)2Fe (SO4)2. Dissolve it in 1000 ml distilled water. Add 5 ml of conc. sulphuric acid (or 3ml of 18 M sulphuric acid). 1 ml contains 0.100 mg of ferrous iron. Warm slightly and add 5 ml concentrated potassium permanganate (KMnO4) drop by drop until it produces a permanent colour (light pink). KMnO4 is added to oxidize the ferrous to ferric. Transfer this solution to a 1 litre volumetric flask and make the volume to 1 litre mark with distilled water. This solution contains 0.1 mg iron/ml.
2. Label a series of Borosil test tubes with blank (B), standard (Sl-S6) and sample (SA 1-4) and place them in a rack.
3. Take different volumes (0.2,0.4,0.6,0.8, 1.0 and 1.2 ml) of standard solution in the labeled tubes and make the volume to 2rnl with distilled water. Add 0.5 ml conc. sulphuric acid, 1 ml potassium persulphate and 2 ml of potassium thiocyanate to all tubes. Mix. Keep for 5 minutes for colour development. Add 9.5 ml distilled water to all tubes, mix and measure the optical density at 490nm.
4. For unknown sample make up the volume upto 100 ml of the given solution. Take 0.6 ml and 0.8 ml of the solution in duplicate and proceed just as in case of standard.
5. Draw the standard curve and calculate the amount of unknown solution present.
classification of various qualitative & quantitative health management technologies
For this Assignment, you will identify a social issue or problem that is important to you and reflect on how it might be remediated through the application of learning principles t
Explain Maintenance of pH - Functions of Bile Maintenance of pH: Bile neutralises the hydrochloric acid and helps to maintain a suitable pH. This prevents the injurious effects
Explain Increased Cardiac Output i) An increase in blood volume increases the venous return and leads to an increased stroke volume. The increase in the blood volume may be d
Explain the Functions of Glucocorticoids Cortisol, cortisone and hydrocortisone are the names given to the glucocorticoids. What is their function in our body? They play a majo
Define the Microwave Processing Food industry, in the recent years, has witnessed the emergence of microwave oven as a substitute for thermal oven for a number of food process
Define Haemorrhagic or Blood Loss Anaemia The body replaces plasma within 1-3 days after a haemorrhage, but this leaves a low concentration of red blood cells. In chronic bloo
Explain Myocurdial Ischemia and Infarction Myocardial ischemia (insufficient blood flow) or myocardial infarction (death of heart cells) reduces myocardial contractile force an
Define the parietal area of the Cerebrum The parietal area, as you can see in the Figure, lies behind the post central area and includes greater part of parietal lobes of the c
Atomic energy: In view of the fast depletion of our non-renewable resources like coal and petroleum, and because of pollution which power stations burning coal cause, there h
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: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd