I then allowed the remaining liquid to evaporate leaving behind salt. I poured the salt into the weighing dish and weighed the mass and calculated and recorded into table 1. Data Table 1: Experiment Data Grams Percent of Mixture Iron Fillings 0.9 gm 19.6 % Sand 1.4 gm 30.4 %
Stirred the mixture to make sure all soluble material dissolves. 10. Poured the liquid while it is hot into a small paper cup. 11. Poured another 10 to 15mL of distilled water into the beaker containing the sand, brining the mixture to a boil and decanted again into the same cup used previously.
Purpose: To determine and execute the separation of mixture of solids through different means. Examples are magnetisms, evaporation, and filtration. Proposed procedure: Start with the mixture, remove iron by using the magnet, then you are left with NaCl, Benzoic acid and sand. Add water to the mixture, and heat it up and pour the liquid from the sand by filtering it out, lay the sand out to dry, funnel out the benzoic acid and the final liquid will contain NaCl and I would heat it to have the water evaporate. Procedure: Followed the steps in the lab manual to conduct each separation.
Get the magnet and put it in a small plastic bag. 2. Wave it slowly around the cup of sand, salt, and iron filings until all of the iron has been attracted to the bag and removed from the cup. 3. Put the sand and salt into a beaker filled with 60 mL of water, and then stir it until you can’t see the salt anymore and the sand is settled at the bottom.
Report Submitted: February 7, 2013 Title: Separation of a Mixture of Solids Purpose: To learn separation techniques based on the chemical properties of a substance Procedure: I used paper cups, the weighing scale, 50ml beaker, burner, burner stand, magnet and the Mixture of solids to separate sand, benzoic acid, salt, and iron. Data Tables: SUBSTANCE | GRAMS | PERCENT OF MIXTURE | Iron fillings | 2.5 | 2.6/4 * 100 = 62.5% | Sand | 2.4 | 2.4/4 * 100 = 60% | Table salt | 0.6 | 1.3/4 * 100 = 32.5% | Benzoic acid | 0.7 | 0.7/4 * 100 = 17.5 | Total | 7.8 | 172.5% | Questions: A. My proposed procedures compared very closely to the actually experiment. I knew that the magnet could separate the iron but the sand was going to the tricky part from the rest of the substances so I figured we would need to be heating and boiling in order to separate the benzoic acid but I really had no clue how to separate the salt from the sand. I have always wondered how sea salt was extracted from the ocean.
Purpose: The purpose of this lab is to learn and perform different type’s separation techniques for a solid type mixture. Separate and observe the separation of the mixtures into their component substances. To learn how to compute what percentage a specific component makes up of the overall mixture. The Solid mixture contains Iron filings, sand, table salt, and benzoic acid. From visual observation of the mixture, it looks that it has an abundance of benzoic acid crystals compared to the other components; the other components seem to be evenly distributed.
Stirred the mixture occasionally; covered it with plastic wrap and allowed to stand overnight in a safe place undisturbed to hydrolyze the aspirin to salicylic acid; noticed the odor of acetic acid in the beaker the following morning. 3. Prepared a developing solution by dissolving 1 gram of iron (II) sulfate heptahydrate into 60mL of white vinegar; stirred until fully dissolved; cloudy green solution resulted. 4. Added 2-3mL of liquid household bleach solution and stirred; solution turned orange.
Through decantation the resulting supernatant CaCl2+3M HCl solution can be separated from the sand that has settled at the bottom of the beaker. The sand that is the left over residue from the decantation process can then be dried over a boiling water
We determined that the mass of zinc necessary to completely react with the copper (II) ions in the solution was 1.308g. We added an excess of 0.050 to make sure the copper completely reacted. 1.358g of zinc was then added to the solution. The solution with the zinc was heated and stirred until it was colorless, showing that the reaction was done. Hydrochloric acid was then added to the solution until the bubbles stopped in order to completely get rid of all of the zinc.
Separation of a Mixture of Solids My Flow Chart First remove iron filings with magnet since this is the only substance in the mixture that it is magnetic and will be attracted to a magnet. Second remove the sand by adding the mixture to hot water to separate. Third remove the benzoic acid since it chrystalizes and is easily removed from the mixture. This will then leave the table salt behind in the water as the last substance. Observations Data Table 1: Experiment Data | | Grams (g) | Percent of Mixture (%) | Initial Mixture | 6.5 | 100 | Iron Filings | 1.8 | 27.69 | Sand | 1.7 | 26.15 | Table Salt | 1.9 | 29.23 | Benzoic Acid | 0.8 | 12.31 | Combined Total | 6.2 | 95.38 | Questions A.