Analysing iron tablets
Foods like liver, kidney, spinach and egg yolk are rich in iron, but sometimes it is necessary to supplement the diet with iron tablets. Fill the burette with the K2Cr2O7 solution, making sure there are no air bubbles in the jet and the funnel has been removed.
Analysing iron tablets
Rinse the beaker with small amounts of distilled water and pour the washings through the filter funnel too. Iron tablets work by replacing body iron. Iron tablets primarily consist of the hydrated form of iron II sulphate also known as ferrous sulphate , which has a chemical formula of FeSO4. AS Experiment Healthy adult males need little iron in their diet, but some sections of the population need substantial amounts to produce extra haemoglobin, e. Iron is an essential mineral needed in the body to produce red blood cells they transport oxygen from your lungs to the organs and tissues throughout your body , as it is the cofactor ion in haemoglobin which carries oxygen around the body. Work out the percentage experimental error in your result. Iron is an essential mineral used in many functions, specifically in the transport of oxygen. Rinse the mortar with a little 1. This hydrated form of iron II sulphate is used medically to treat iron deficiency. These include growing children, pregnant and menstruating women and people who have lost considerable amounts of blood.
What else is present in the tablets? Allow the solution to cool and transfer to a ml volumetric flask and make up to the mark with deionised water.
In this practical you will attempt to find the amount of iron II sulphate in the tablets by titration against standard potassium manganate VII solution, KMnO4, and then compare it with the quantity stated on the bottle.
A2 Experiment When the body does not get enough iron, it cannot produce the number of normal red blood cells needed to keep you in good health, a condition called iron-deficiency anaemia.
Make up to the mark with distilled water, stopper and shake the flask to mix the contents.
Determination of iron in dietary supplement through redox titrations
The outer coating will not dissolve and a whitish suspension will form. Its principal role is as a constituent of haemoglobin, the oxygen carrying agent in the blood. You would need to use hydrochloric acid and put it into a water bath at about 37 degrees to model stomach conditions. Repeat the titration till concordant results are obtained agree to within 0. Repeat until two results are concordant. Related Interests. Titration results:. For example: 1 The concentration of an unknown iron II solution 2 The number of moles of water of crystallisation in an iron II salt.
Prepare ml of 0.
based on 37 review