SIXTH FORM GOVERNMENT SCHOOL LAB EXPERIMENT TITLE: DETERMINATION OF THE MASS OF IRON (II) SULPHATE IN BRAND ‘X’ OF IRON TABLETS TEACHER’S REMARKS: Iron is a mineral that is a constituent in haemoglobin. Iron tablets usually contain iron in a cheap soluble form such as iron (II) sulphate. You are provided with brand ‘X’ of iron tablets which contains iron (II) sulphate along with other compounds. You are to prepare a solution of this tablet which has been grounded for you. You are also required to
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Goggles Bench mat Tripod Bunsen burner Pipe-clay triangle Methods 1. Weigh the empty crucible with its lid‚ and write down the result in a table. 2. Clean the piece of magnesium ribbon with sandpaper‚ then coil it loosely around a pencil. Put the magnesium ribbon into the crucible and put the lid on. Weigh the crucible‚ lid‚ and magnesium together‚ and write down the result in your table. 3. Put the crucible onto the pipe-clay triangle. Leave the lid slightly ajar to to allow air into
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Babyloneans and the Chinese already knew that a triangle with the sides of 3‚ 4 and 5 must be a right triangle. They used this knowledge to construct right angles. By dividing a string into twelve equal pieces and then laying it into a triangle so that one side is three‚ the second side four and the last side five sections long‚ they could easily construct a right angle. A Greek scholar named Pythagoras‚ who lived around 500 BC‚ was also fascinated by triangles with these special side ratios. He studied
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Introduction Fish kills are common in natural water systems near mining operations. A major fish-kill took place in the Clark Fork in 1984. These fish kills are due to unnaturally high salinity‚ which is toxic to the indigenous fish species‚ caused by group IA and IIA metal ions in the water. As the mine’s waste seeps into the water supply‚ the salinity‚ and thus toxicity to the fish‚ increases as the various metals dissolve. In this experiment a simulated water sample from Clark Fork‚ or portion
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Known as the Iron Lady of Malaysia‚ Datuk Maznah Hamid is a very well known entrepreneur‚ business woman as well as a famous motivational author and speaker. Long time ago‚ Datuk Maznah decided to buy an almost bankrupt‚ unknown security company and turned into a successful company that provide secutiry services. During the early of her involvement‚ she employed a few guards‚ with herself being jack of all trades in the small outfit includes clerk‚ secretary‚ manager and sometimes the she become
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Chapter 24 Industry Comes of Age The Iron Colt Becomes an Iron Horse * After Lincolns death in 1865 the railroad production went up and by the 1900s it had gone up by at least 192‚556 miles * In 1862 congress began to advance liberal money loans to 2 favored cross continent companies and gave them a lot of acres paralleling the tracks. Washington gave the railroads 155‚504‚994 acres & the western states contributed 49 million more. * Land grants to railroads were made in broad belts
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Term 1 - Summative Assessment Mathematics Question Paper Set - 1 Time: 3 to 3 ½ hours Max. Marks: 80 All questions are compulsory. The questions paper consists of 34 questions divided into four sections A‚ B‚ C and D. Section A comprises of 10 questions of 1 mark each‚ Section B comprises of 8 questions of 2 marks each‚ Section C comprises of 10 questions of 3 marks each and Section D comprises of 6 questions of 4 marks each. Question numbers 1 to 10 in section A are multiple choice questions
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AC572 You Decide Jan. 24‚ 2011 When evaluating this case using the three elements of the fraud triangle I have concluded that the potential pressures for Chris to commit fraud are greater than for others. The pressure is from Chris himself because he wants what others have or what he doesn’t have. This is due to the fact that Chris is young and impressionable may feel as though he doesn’t make enough money to obtain the material possession he desires or see others with. He may also be of
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Theory What is rust? Rust is the common name of a compound‚ iron oxide. Iron oxide‚ the chemical Fe2O3‚ is common because iron combines very readily with oxygen -- so readily‚ in fact‚ that pure iron is only rarely found in nature. Iron (or steel) rusting is an example of corrosion -- an electrochemical process involving an anode (a piece of metal that readily gives up electrons)‚ an electrolyte (a liquid that helps electrons move) and a cathode (a piece of metal that readily accepts electrons)
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Teaching AS Chemistry Practical Skills w w w e tr .X Appendix 2 m eP 3. How much iron is there in an iron tablet? – Student Sheet In this practical you will have the opportunity to perform a quantitative analysis using the technique of titration. You are going to analyse an iron tablet to find out how much iron is actually present in it. Titrations involving potassium manganate(VII) may form part of your Practical Assessment. Intended lesson outcomes By the end of this practical you
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