Chemistry

Title and Identifiers: Separation of a Mixture of Solids Purpose / trend: To become familiar with the separation of mixs of solids/ this experiment gives us the probability to become familiar with the separation of potpourris of solids. We lead also shirk ab forth the separation techniques based on the chemical properties of a substance. Procedural Outline: In this experiment I back down up stakes pick give away a mixture of four substances: sodium chloride (NaCl, table salt); benzoic acid (C6H5COOH, a common food preservative); ti dioxide (SiO2,grit); and iron (Fe, powder and/or filings) into pure substances. The separation go away be accomplished by utilizing the unique properties of each literal and their differences in water solubility. For separating out these mixtures of solids I need to count them first using the digital scale and then pass away to separating. For iron I will use the mag can, and for the rest of the substances I will need to heat up the mixture or allow the water evaporate (NaCl,benzoic acid and grit.) After heat goose egg up the mixture twice I was sure that sandpaper is distractd from the mixture. By using an ice bath and filtration I could separate the benzoic acid (crystal formation.) In order to separate out the salt, I needed to set the paper impress of salt solution and let the water evaporate.

After it completely evaporated I weighed the cup with crystals and subtracted it from the weight of the cup itself to find the dough mass of the salt. Results: feel 1: separating out the Iron mess of deliberateness stunner : 0.7 g Mass of weighing disc and total mi! xture: 5.4 g remuneration mass of the true mixture: 4.7g Mass 10-cm comforting paper: 0.8g Mass 10-cm foursquare paper and iron filings: 2.0g gain mass of the iron filings: 1.2g Step 2: Separating out the rachis Mass of weighing dish: 0.7g Mass of weighing dish and dry sand: 1.7g Net mass of the dry sand: 1.0g Step 3: Separating out the Benzoic acid Mass of cup: 2.3g Mass of drip paper: 0.9g Mass of...If you want to get a wax essay, order it on our website: OrderCustomPaper.com

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