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atomic number 12 Oxide Aim: Equipment: Method: 1. Heated the crucible and palpebra strongly for 5 min everyplace a live Bunsen burner. Allowed to cool. 2. Weighed the crucible and palpebra 3. Thoroughly cleaned the surface of the Mg thread with steel woolen. 4. Recorded the appearance of the cleaned Mg. 5. Coiled the reprimand of Mg ribbon so that it fitted inside the crucible. Weighed the crucible, hat and mg ribbon. 6. Placed a pipe clay triangle oer the Bunsen burner and care practicedy het the crucible without the lid until the atomic number 12 began to glow then put the lid on with couplet of tongs before it burst into flames. 7. Once the lid was in place, heated strongly for about 10 mins lifting the lid at times to take for oxygen. 8. Removed the lid and heated for a bring forward 5 mins to ensure complete reaction. 9. Replaced the lid and allowed to cool. Reweighed the crucible, lid and atomic number 12 oxide. Results: bearing Empty crucible and lid melting pot, lid and magnesium ribbon Magnesium Ribbon Crucible, lid and magnesium oxide Magnesium Oxide group O 2Mg + O2 = 2MgO Calculations: Moles of Mg = the great lowborn / hero plentitude = 0.35 / 24.3 = 1.44 x 10-2 groyne Moles of MgO = luck / Molar dope = 0.51 / 40.3 = 1.27 x 10-2 mol Moles of O2 = Mass / Molar Mass = 0.16 / 32 = 0.50 x 10-2 mol deduction: The empirical prescript for Magnesium oxide is MgO.

Magnesium Oxide Craville Studies Page 1 of 2 To get word the empirical formula using molar bunch of Magnesium oxide. 1 Strip of Mg ribbon Crucible and lid Pipe clay triangle Tripod Matches S teel wool admixture tongs Bunsen Burner Ele! ctronic scales Safety glasses Mass (g) 30.47 30.82 0.35 30.98 0.51 0.16 Evaluation: Overall it was fairly successful. Theoretically the moles of Magnesium should nonplus up the derive of moles of Magnesium oxide produced. However it is not. This is due to a number of reasons. To begin with, the electronic scales only measure to 0.01 of a gram. That, match with the small nature of the masses means thither is a larger percentage...If you want to get a full essay, rule it on our website: OrderCustomPaper.com

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