Mixture Lab Write Up

Separation of a Salt, Sand, and Water Mixture Jamie Schurz and capital of Texas Hoggard Date experiment was performed September 6 and September 7 unveiling Purpose The purpose of the experiment was to use various research laboratory equipment and lab techniques to separate a admixture of flavor, gritrock, and irrigate supply. Background An element is the simplest form of a substance that retains the properties of that substance. A compound is a substance formed by combining two or much elements set in headstrong proportions. A mixture is a system of two or more distinct chemical substances. Unlike compounds, mixtures can be corporeally combined.Because the components are physically combined, they can also be separated using physical properties. Physical properties are properties that do not change the chemical spirit of matter. In this lab, a mixture of coarseness and grit will be separated using the listed equipment and separation techniques. Hypothesis If a mixture of linchpin (3. 3g), table brininess (1. 2g), and water is separated using filtration and boiling point, then around of the sandpaper and salt will be retrieve. Safety Information Du striation the experiment, enchant safety wear should be worn at all propagation such as goggles and an apron (to prevent salt or caustic water from entering the eye).Beaker tongs should be used to adopt the heater beaker from the appropriate heating fixture and then it should be guardedly transported onto the designated press fiber pad to cool. Materials and Methods * * Graduated cylinder * Small beaker ( one hundred mL) * super beaker (600 mL) * Hot plate * Small ring * Funnel * Filter news cover * Glass stir rod with rubber policeman * Hot mitts * Beaker tongs * Pressed fiber pad * Weigh boat * Electronic proportionality * Scoops * Salt and sand sample * water Experimental Procedure 1. contrive on appropriate safety wear. 2. Begin this experiment with 47 mL of water, 1. 2 g of salt, a nd 3. g of sand. * Use the 100 graduated cylinder to find the 47 mL of water, reading from the meniscus. * Put the weigh boat onto the electronic balance and zero it out, then slowly add the salt until you have 1. 2 grams of it. Do the resembling for the sand. * Also large number the big of the two beakers 3. Combine the 1. 2g of salt and 47 mL of water into the 100 mL beaker and stir until the salt is dissolved 4. Add the sand and see until it settles onto the bottom of the beaker. 5. jam the filter paper and then fold it into a small cone. Wet sides before placing into funnel that is inside a ring stand.Place larger beaker underneath funnel. 6. Slowly pour sand and salt mixture through filter paper. Let the sand dry. 7. Take large beaker with salt and water and place on top of a hot plate. castigate hot plate onto its highest setting and let boil. 8. Once salt starts tonic lower temperature on hot plate. When most of the water has evaporated remove from hot plate using beak er tongs and let rest on pressed fiber pad. 9. Turn hot plate off. 10. Mass out retrieve sand and salt. Results Raw Data object Mass (g) starting sight of salt 1. 2g Starting mass of sand 3. 3gDry filter paper 0. 7g Larger of the 2 beakers 103. 1g Total mass of beaker/salt (after) 105. 3g Mass of recover salt 2. 2g Total mass of filter paper/sand (after) 4. 1g Mass of recovered sand 3. 4g Important results * The mass of recovered salt was 2. 2g * The mass of recovered sand was 3. 4g * The percentage computer error for the mass of recovered salt was 83% error * The percent error for the mass of the recovered sand was 3% * The percent yield for the mass of the recovered salt was 183% * The percent yield for the mass of the recovered sand was 103% CalculationsDiscussion Expected results v. demonstrable results In the experiment, the mass of the salt recovered was larger than the mass of the substance of salt that was started out with. This may be due to the tap water that was us ed not being pure or that some sand was small enough to not be filtered out. Analyze experimental error During the experiment, instead of measuring the water out to exactly 47mL, around 60 mL of water was used. This could have caused there to be supererogatory water during the final measurement.There was not enough time to boil off the extra water this was done by another person later without any partner in the group supervising. Also, when looking for the sand sample the abutting day, it was missing so another groups sand entropy was massed instead Improvements Having a longer time to conduct the experiment big businessman have changed the data. Instead of leaving the sand sample in the expand on a table to all classes, it may have been recrudesce for them to be separated more. Results in terms of the purpose The coating was to evolve most of the salt and sand back through filtration and evaporation.Most of the sand was recovered however there was a great deal of added mas s to the salt (around 1g). The goal was met as far as data is concerned. Conclusion The goal of the experiment was to see if using boing point and filtration could recover close to the same amount of salt and sand put together in a mixture. The experiment revealed a percent yield of 183% for salt and 103% for sand, which does support the surmise that using those two techniques, about the same amount of salt and sand would be recovered.