Wednesday, February 6, 2019
Essay --
Shusanta BhattaraiMs. KelleyFormal lab reportThe conservation of Mass and how its committed to chemical actionsIntroductionIn this lab, we were looking at the conservation of matter, chemical reactions and using plenitude to find the number of moles present after a reaction. We had previously studied moles (measurement system) and mass. We copiously took notes on the masses of the objects after reactions and notice how the quantity would change after a chemical reaction. The conservation of mass is a law that states a mass will stay accordant over time and will not change until it is not feature or removed. We per make a lot of chemical reactions in this lab. The first realm of the lab was putting a coiled piece of copper in flatware nitrate and washing it out with weewee. The second and third dissociate was also about adding chemicals and seeing the reactions. The purpose of the experiment was to determine if the value of silver and silver nitrate would stay the very(pren ominal). The hypothesis was that if chemical elements and compounds react the ratio would stay the same, due to the conservation of mass and the law it has. result Originally, I was supplied with 30 cm of copper wire and a taste tube. First, the wire was cleaned with steel wool.The copper wire was coiled around the good length of the test tube. The copper was then weighed. Then an empty 250 ml beaker that was labeled by my partner was weighed. A vial of white silver nitrate was also weighed. After, 2/5th of the clean beaker was filled with di nonoperationaled water and the solid silver nitrate was stirred in with the water until the crystals that were formed dissolved. Then the end of the copper wire was bent so we could sink the coil in the solution and still be able t... ...s is disposed and the mass must remain consistent over time. The chemical fulfill did not change the quantity and it showed.4.The ratios might be different because there might have been a flaw in the procedure. They all still surround 1 and no wholeness in the class got one but we all got something dummy up.5.I think that the decanting process was the main ejaculate of contamination. Sometimes water doesnt take out all the specks. We could bargain a high tech decanting type-system and walk through each schoolchild individually so that there would be minimal chance of error. end pointWe saw that no matter the chemical change we would get the same ratio. The purpose worked out in a great fashion and showed us that the quantity was almost the same. The whole class got a number that was close to one. The hypothesis was supported because the conservation of matter proved to be true.
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