Empirical Formula

Essay preview GCSE CLASSIFYING MATERIALS September 12, 2003 Experiment: To Determine the semiempirical law of Magnesium Oxide INTRODUCTION: The empirical formula is the simplest and terminal intact enumerate ratio of the unalike atoms in a essay of compound. To work out the empirical formula, the value of moles of the different atoms in a compound is needed. Mole is simply scarce a unit used to measure the amount of atoms, just akin how the unit dozen is used to measure things such as eggs. One mole is 6×10^23 atoms and this number is called the Avogadro number. The mole can be also be as the number of atoms in exactly 12g of Carbon. In this experimentation, the atomic number 12 willing be modify and this magnesium will match with the oxygen in the air to form magnesium Oxide. plat: mode: 1. An empty crucible and its lid were weighed on an galvanizing balance. The push-down store of the crucible and its lid were recorded. 2. The surface of the magnesium thread was scraped with emery wallpaper to remove any magnesium oxide on the surface. 3. The magnesium was gyrate and place in the crucible. Then the lid was replaced on the crucible, and the pile of the crucible with lid containing the magnesium was found. The atomic nuclear reactor was recorded. 4. The safety gape was worn.

Then apparatus was setup as shown in the diagram. The magnesium was first heated with a mild blue cauterize and after a several proceedings with a holler flame. 5. Every few minutes, the lid of the crucible was lifted carefully with a tong to see if the magnesium had started to hack and also to left(a) some air ente! r the crucible to operate the experiment more efficient. 6. When the magnesium had completely reacted, the crucible was heated powerfully without the lid on for few minutes. Then, the crucible was placed on gauze for it to cool down. 7. When the crucible cooled down so that adept was able to hold it, the crucible with lid containing the magnesium oxide was measured. The mass was recorded....If you want to get a full essay, recount it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay