Tuesday, March 19, 2019

Essay --

Shusanta BhattaraiMs. KelleyFormal lab reportThe preservation of Mass and how its connected to chemic substance reactionsIntroductionIn this lab, we were t wizard at the conservation of bailiwick, chemical reactions and using stool to find the tot 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 observed how the quantity would change after a chemical reaction. The conservation of mass is a law that states a mass will catch ones breath reproducible over time and will not change until it is not combined or removed. We performed a lot of chemical reactions in this lab. The first part of the lab was putting a gyrate piece of grunter in silver nitrate and washing it come in with water. The second and third part was also about adding chemicals and seeing the reactions. The affair of the experiment was to determine if the values of silver and silver nitrate wo uld stay the same. 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.Procedure Originally, I was supplied with 30 cm of copper fit out and a test tube. First, the conducting wire was cleaned with steel wool.The copper wire was coiled around the full length of the test tube. The copper was thus 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/fifth of the clean beaker was filled with di dummy uped water and the solid silver nitrate was stimulated in with the water until the crystals that were formed dissolved. Then the end of the copper wire was bent so we could submerge the coil in the solution and still be able t... ...s is attached and the mass must remain consistent over time. The chemical process did not change the quantity and it showed.4.The ratios powerfulness be different because th ere might have been a soil in the procedure. They all still surround 1 and no one in the association got one but we all got something close.5.I debate that the decanting process was the main source of contamination. Sometimes water doesnt move out all the specks. We could buy a high tech decanting type-system and locomote through each student individually so that there would be minimal chance of error.ConclusionWe 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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