could this experiment have been done in a various order? forexample, fe submit being removed at the finish of the scheme. Why orWhy not?

Here is the procedure:


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INTRODUCTION most of the matter roughly us con mix of two or an ext Mixtures have the following an essential proper natter around us consists of mixture of various substances. A mixture results from the tivo or much more pure substances, aspects or link that perform not reaction chemically. • each component that a . Mixtures deserve to be separated into mponent the a mixture retain its chemical identity and also hence its very own properties. Can be separated right into these contents by physics means. . Composition of a mix place of a mixture might vary while that of its components is fixed. Materials in our daily life, such as rocks, soil, seawater, cement, wood, are instances homogeneous as well as heterogeneous. This experiment encounters the materials of a heterogeneous mixture and not through their identification. Physical favor magnetic property, solubility etc. Will certainly be made use of in the separation techniques. Most usual materials in our file of mixtures. Mixtures have the right to be homogeneous as well as heterogeneo separation of the materials of a heterogeneous properties prefer magnetic property, solubilit ods provided depend top top the distinctions in physical properties between the components. Methods of separation typically used are: Decantation Separation the a liquid from a heavy (sediment) through gently pouring the liquid from the solid without disturbing the solid. Filtration Separation of a solid from a liquid by method of a porous material, a filter which enables the i of the liquid however not the solid. Exploit Separation the a ingredient of a mixture through preferentially dissolve it in a an ideal solvent while the other contents stay in one insoluble type The mixture in this experiment will certainly contain 3 components: iron filings, salt (NaCl), and also sand (SiO). The flow chart for the separation is provided below: use a magnet Mixture (Fe filings, NaCl, SiO) - Fe eliminated weight loss Residue staying Measure Fe content by Residue from exploit (NaCl + SiO) - wet sand dries to continuous weight Sio, (weigh sand) extract with water heat to dryness NaCl solution - NaCl (weigh salt)
Procedure weigh a clean and dry evaporating dish. Add about 3 to 4 g that the unknown mixture to the dish. Sweet the dish containing the sample and calculate the sample weight usage a magnet to choose up all the iron filings native the mixture. Sweet the evaporating dish through the had solid. The loss in load represents the lot of Fe in the sample mie add 20 ml of water to the hard in the evaporating dish and also stir tenderness for couple of minutes. Weigh a second evaporating dish with a clock glass. Decant the fluid from the an initial dish closely into the second dish. Be careful not come transfer any kind of solid into the second evaporating dish. Repeat the decantation process for two additional trials making use of 10 ml the water every time. This will certainly ensure the extraction of every soluble NaCl indigenous sand. At this phase of the experiment there space two evaporating bowl - the first one v wet sand and also the 2nd one through a solution of NaCl and also a clock glass. Ar the second evaporating dish through NaCl equipment gently top top a hotplate and also slowly warm the equipment to evaporate water. In the direction of the end, sheathe the dish v the previously weighed clock glass and also reduce the heat to stop spattering. As soon as the NaCl is fully dry water will certainly no much more condense ~ above the watch glass and also it too, will be dry. Carry the evaporating dish and also the watch glass back to room temperature and weigh. Calculate the load of NaCl in the sample. Place the very first evaporating dish with wet sand ~ above a clay triangle ~ above a ring stand and heat gently until the sand is absolutely dry. When the sand is dry, eliminate the heat and cool the dish back to room temperature. Weigh the dish v dry sand in it and calculate the quantity of sand in the sample.

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Calculate the percent of every component in the sample.