Iron(II) sulfate, is typically the source of iron in tablets prescribed to anemic patients, a condition where a person lacks enough healthy red blood cells. The tablets can be dissolved in dilute sulfuric acid to solvate the Fe2+ ions. To determine the percentage by mass of iron within the tablets, the Fe2+ ions can be oxidised to Fe3+ using potassium permanganate, where MnO4− is reduced to Mn2+.Calculate the percentage by mass of iron in a 500 mg tablet that requires 24.53 cm3 of 0.0100 mol dm−3 KMnO4 to titrate the iron sample. State your answer to 3 significant figures.                M(Fe) = 55.85 g mol−1

calculate molarity of the standardized potassium permanganate solution in redox titration of iron 2 into iron 3. molecular weight of hydrated ferrous ammonium sulfate is 392.14 g/mol. also use the ration of iron 2 to permanganate ion from equation: 5Fe + Mn04 + 8H gives 5Fe + Mn + 4H2O. VOLUME OF KMnO4 used in titration is 7.65 ml and mass of hydrated ferrous ammonium sulfate is 0.2911 g.

Iron(III) oxide, Fe2 O3 , in iron ore is converted to iron when it reacts with carbon monoxide, CO,in the blast furnace.(i) Calculate the percentage by mass of iron in iron(III) oxide, Fe 2 O3 .percentage = ..............................% [2](ii) State the name of the iron ore which consists mainly of iron(III) oxide........................................................................................................................................ [1](iii) Describe how carbon monoxide is formed in the blast furnace........................................................................................................................................ [1](iv) Write the symbol equation to show the reaction that occurs when iron(III) oxide is convertedto iron in the blast furnace........................................................................................................................................ [2](v) Name the chemical process which happens to iron when iron(III) oxide is converted toiron in the blast furnace........................................................................................................................................ [1](c) State the type of reaction shown by equation 2............................................................................................................................................... [1]

1.MnO4-(aq) + 8H+(aq) + 5Fe2+(aq) ---------> Mn2+(aq) + 4H2O(l) + 5Fe3+(aq)2. Calculate the volume of iron (ii) sulfate into dm^3 (25.0 cm^3= 0.025dm^33.Calculate the number of moles for the potassium permanganate, (volume of Pottasium permangnate used) x (concentration of Potassium permanganate) = (Number of moles of Potassium Permanganate)4. Mole RatioMnO : Fe    1    :  5 5.Repeat for accuracy and calculate the average mass of iron per tablet from multiple measurements

Scenario: You are given with a bottle of best selling iron supplement tablet called UNITION, manufactured by Unity Factory in Singapore. In its advertisment, UNITION brands itself as the 'best' iron supplement tablet in the market as it is the only brand with such high amount of iron (3.5g of element iron in each tablet as stated in its ingredient list). Your Task: You are to plan and design an experiment to determine if the mass of iron present in one tablet of UNITION Brand compares well with the mass as stated by the manufacturer.

Two Kinds of IronThe human body needs iron to produce hemoglobin, a substance that helps red blood cells transport oxygen. Without enough iron, a person may feel tired and weak. Dietary sources of iron include plant sources, such as vegetables and beans, and animal foods, including poultry, red meat, and fish. However, plant and animal sources are not equal. The iron in plants, called nonheme iron, is not easily absorbed by the human digestive system. For example, a half cup of cooked spinach contains a healthy dose of over three milligrams of iron. Unfortunately, only five percent of that iron can be used by the body. On the other hand, the iron in animal foods, called heme iron, is better utilized. Heme iron is contained within a ring of protein, which helps the body to absorb it easily.What is the main, or central, idea of the passage?Plant and animal food sources both contain iron, which helps red blood cells carry oxygen throughout the body.Plant and animal food sources both contain iron, but the iron in animal foods is more accessible to the body.Heme iron, found in meat and fish, is easily absorbed by the human body.Submit