Tuesday, June 4, 2019
Experiment to Learn the Amount of Iron in Iron Tablets
Experiment to Learn the Amount of crusade in Iron TabletsGABRIELA CARUSO KANDIR1.1 What is Topic area you are investigating in to Prepare and standardise a potassium permanganate stem and use it to determine the occur of iron (II) in iron tabletsWhat is your title Analyze the actual amount of iron (II) fork push through in a tablet of iron supplementWhat is your Aim Demonstrate if iron supplements have the adequate levels of iron (II) by studying if the claims in supplement bottles are correct or not.2.1, 2.2, 2.3 Objectives Measure the amount of iron (II) in supplement tablets through performing a redox titration reaction2.1, 2.2, 2.3 Extraneous variables (contaminants) Permanganate solutions tend to decompose with time, causing a change in submergence. To overcome this variable it is important to standardizing the KMnO4 solution.Sulfuric hot should always be in excess to forfend insoluble brown atomic number 25 oxide (MNO2) formation.Introduction and/or rationale Iron is a mineral that is naturally present in many nutrients, added to some food products and available as a dietary supplement. Ion is an essential component of hemoglobin, an erythrocyte protein that transfers group O from the lungs to the tissues. As a component of myoglobin, it provides oxygen to muscles. Iron also supports the transfiguration and is necessary for growth, development, normal cellular functioning, and synthesis of some hormones and connective tissues.In case of iron deficiency the human body tail endnot make enough tidy oxygen carrying red pipeline cells (erythrocyte), and a lack of those cells is called iron deficiency anemia.Without healthy red blood cells it is not possible to transport enough oxygen through the body, and without oxygen thither is fatigue. Exhaustion can affect everything, from brain function to the ability of the immune system to fight infectious.The daily requirements for iron depends o age, gender and overall health. Starting at adolescen ce, a womans daily iron collects increases. Women need more iron because they lose blood each month during their period. That is why the NHS advices women from ages 19 to 50 to get 14.8 mg of iron each solar day, while men the same age need to convey only 8 mg. For the same age group the United States department of health and the Heart and stroke foundation in Canada recommends a even higher(prenominal) daily intake of 18 mg of iron per day.Most women will ingest their daily iron needs through their normal meat and vegetables diet. whatsoever groups, such as vegetarians, pregnant women, or those with higher blood loss (blood donations, heavy menstrual periods, stomach or intestine conditions among other examples) may need iron tablets supplementation on top of their regular diet. This is due either because of a decrease in ion intake (diet) or absorption or there is an increase in the iron needs (such as pregnancy or breast feeding for example).An iron deficiency and consequent anemia will charter to signs of short of breath, fast heartbeat, cold hands and feet, craving for strange substances such as dirt or clay, hair loss, in the raws at the corner of the mouth and sore tongue.As mentioned before, in some cases of iron deficiency eating a diet that is high in iron-rich foods such as fortified cereals, read meat, dehydrated fruit and beans may not be enough to give the required needs, in this case a doctor may recommend iron supplement, hardly unlike some supplements, when the subject is iron, more is definitely not better. Adults shouldnt take any more than 45 mg of iron a day unless they are being treated with iron under close medical exam supervision.2.4 Analysis of source material Oxidation-reduction (redox) reactions are one of many chemical substance reactions. Redox usually involves the transfer of electrons. Titration is the flocktric measurements of a solution of know concentration when it reacts completely with a measured volume or mass of other substance. The analysis of present iron in a supplement tablet can be done by a redox titration reaction.Iron (II) ions can be ionized to ion (III) ions by potassium permanganate in acidic solution. For the redox titration reaction one of the most commonly strong oxidizing performer is used, the potassium permanganate (KMnO4). Iron (II) will be oxidized to iron (III) and the potassium permanganate will be reduced to Manganese.MnO4+8H++5Fe2+Mn2+4H2O+5Fe3+As the Potassium permanganate doesnt require an indicator to signal the end-point of the titration, it has a unique advantage among titrants. In an acidic condition the deep purple solution of manganite ions is reduced to a very pale pink solution of manganese ions. This solution is so pale as to appear colorless when dilute and, in practice, the marked difference in color between these two oxidisation states is useful as an end-point for this redox reaction.The manganite ion accepts electrons and is reduced to colorless Mn 2+ ions according to the following half-equationThe potassium manganite solution is added from the burette to the solution of the reducing agent and is immediately decolorized. As soon as the reducing agent is used up, the next drop of potassium manganite solution is not decolorized therefore coloring the solution as a pale purple color. The end-point is the first appearance of this purple color. The acid used to provide H+ is dilute sulfuric acid. encounter sagaciousnessName of the ChemicalRisk incurredHow to reduce the severity of the riskDisposal/SpillageKMnO4Not HazardousNot HazardousNot Hazardous3M H2SO4Risk 4 for irritating eyes and skin. Casing severe burns to eye, skin and body tissues.If well handled the risk is low.Wear Safety GlassesKeep out of reach of Children, Keep container in a ventilated placeIn case of contacted with skin or eyes, rinse immediately with water and seek medical adviceIf ingested wash out month, apply artificial respiration if needed, seek medical h elpAvoid contact of the acid with water. As any strong acid it may explode and or produce corrosive fumes in (fast) contact with waterWash down the sink with a large amount of waterIn case of Spillage, liquid can be absorbed using sand adsorbent. This should be transferred to a suitable container and disposed as grime wasteIron subjoining tabletsNot HazardousNot HazardousNot Hazardous2.1 List the equipment and chemicals/reagents you would use to undertake your experimentPotassium Permanganate buret and Clamp with white numberingIron smack (Iron supplement tablets- 3 different specimens)Appropriate glassware3M sulfuric acid (H2SO4)Magnetic stirrer3 100- 150 mL beakers2.1 How you would carry out the experiment including the use of equipment and what chemicals/reagents you would use?preparation of the Iron tablet sampleClear three 100-150 mL beakers with trounce and water. Rinse with several small portions of distilled waterDirectly into each beaker, weigh approximately 0.5 grams of iron sample.Add 15 mL of distilled water to each sample and stir to dissolve the solidAdd 8mL of 3M sulfuric acid, to each sample. This step is needed to provide the hydrogen ions, which are required for the reduction of the permanganate ion.Titration of the Iron sample Potassium PermanganateObtain approximately 55 mL of the standardized potassium permanganate solution (KMnO4), and record the exact concentration of the KMnO4 solution.Prepare the buret by cleaning, rinsing and filling with potassium permanganate solution.Record the initial volume reading to the nearest 0.01 mLTitrate each sample to the endpoint (first appearance of permanent- at leat 10 seconds-, pale pink color). Record the final buret readingThe mass of iron in each sample can be determined from the volume of KMnO4 required to titrate. This is possible through determining the moles of KMnO4 used, and a balanced equation.2.1 How will you collect and record the data data will be collected from the 3 samples in a table with the initial and final volume of titrate. A note on the exact concentration of the KMnO4 solution will also be present in the results sheet.2.1 How will you Analyze results The mass present in each sample will be determine through the calculation of the concentration of a reagent from the titration results. Results will be compared with the claims from supplement bottles to verify if the amounts are similar or the claims are incorrect.2.1 How will you present your data? Data will be presented with tables showing the amount of iron (II) in the three samples followed by a comparing graph of the quantities found in the tests with the claims in the iron supplement bottles. elongationsReference ListHeart and Stroke Foundation (2015) Nutrients for women Online Available from http//www.healthcheck.org/page/nutrients-women(Accessed on 22 April 2015)NHS (2015) Vitamins and Minerals- Iron Online Available from http//www.nhs.uk/Conditions/vitamins-minerals/Pages/Iron.aspx(Accessed on 22 April 2015)Centers for disease control and barroom (2011) Iron and iron deficiency Online Available from http//www.cdc.gov/nutrition/everyone/basics/vitamins/iron.html(Accessed on 22 April 2015)Webmed (2011) What You Need to Know About Iron Supplements Online Available from http//www.webmd.com/vitamins-and-supplements/lifestyle-guide-11/iron-supplements?page=3(Accessed on 22 April 2015)National Institute of Health (2015) Iron Online Available from http//ods.od.nih.gov/factsheets/Iron-HealthProfessional/h2(Accessed on 22 April 2015)AQA (2009) 2 Inorganic Chemistry PSA10 Carry out a redox titration Online Available from http//filestore.aqa.org.uk/subjects/AQA-2420-W-TRB-PSA10.PDF(Accessed on 23 April 2015)A-level Chemistry web (2015) Redox titration Online Available from http//alevelchem.com/aqa_a_level_ chemical science/unit3.6/inorg01.htm(Accessed on 23 April 2015)Collin College (2010) Determination of Iron in Dietary Supplement through Redox Titrations Online Available from h ttp//www.collin.edu/chemistry/Handouts/1412/Redox Titration Experiment.pdf(Accessed on 23 April 2015)Chemistry Lab Mouse A2 (2008) Practical Determination of the Percentage of Iron in Iron Tablets Online Available from http//sustainability.sellafieldsites.com/resources/labmouse/chemistry_a2/3204.php(Accessed on 24 April 2015)Northern Virginia Community College (2014) Chemistry 111 Lab- Redox Titration Online Available from http//www.nvcc.edu/alexandria/stb/chm/111/111.08RedoxTitrationSpring2015.pdf (Accessed on 24 April 2015)Boundless (2014) Redox titrations Online Available from https//www.boundless.com/chemistry/textbooks/boundless-chemistry-textbook/aqueous-reactions-4/oxidation-reduction-reactions-48/redox-titrations-248-1533/(Accessed on 24 April 2015)Winona State University (2010) Determination of Iron by Redox Titration Online Available from http//course1.winona.edu/cmiertschin/213/inquiry_lab/exp10_fe_redox.pdf(Accessed on 24 April 2015)Braemar College (2015) Internal Asses sment Guidelines Unit Timeline Online Available from http//vinkichemistry12.weebly.com/uploads/2/5/2/1/25219856/course_description_-_unit_3_2015.pdf(Accessed on 24 April 2015)Risk assessment services (2008) Hazard Communication SheetSULPHURIC ACID 90-100%w/w Online Available from http//www.riskassessmentservices.co.uk/HazCom/Sulphuric Acid3.pdf(Accessed on 24 April 2015)TAQ 2 Time Frame of the investigation if the experiment was to be carried out3 old age for background investigate2 days to write an introduction, reference list1 day to arrange chemicals, samples and equipments to do the experiment1 day to do the experiment1 day to analyze collected data2 days to write results, build tables and graphs and write a conclusion and abstractTotal 10 days to finalize carry out the research project
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