This is lab report about The Synthesis and Determination of Empirical Formula for Magnesium Oxide.

The Synthesis and Determination of Empirical Formula for Magnesium Oxide school: To order the empirical formula for atomic number 12 oxide. Data Collection: Table 1 fix of vitiate melting pot, melting pot + Mg (roughly 1cm pieces of a 15-cm piece of milligram ribbon), and crucible +MgxOy. (mass measured with an analytical equilibrise). The mass of crucible + MgxOy was obtained after(prenominal) a invariable process of heating, letting cool, heating with water system adequacy to immerse the content and letting cool of the Mg. Mass of go off crucible (g)Mass of Crucible + Mg (g)Mass of Crucible +MgxOy (g) 16.04716.21416.294 skepticism of analytical balance = + 0.002 *Note that because we are uncertain if Mg has completely reacted with O2 in the first heating, if all the Mg deal reacted with O2 instead of N and if the water added has completely vaporized in the second heating(with water), the selective information and the following calculations may not be as accurate. Da ta showing and Procession: 1.mass of crucible + Mg - mass of empty crucible =Mass of Mg 16.214 ±0.002 g - 16.047± 0.002 g 0.167 ± 0.004 g 2.mass of crucible + MgxOy -mass of crucible +Mg = mass of O 16.294 ±0.002g - 16.214 ±0.002g 0.0800±0.004 3.mass of Mg =0.167±(0.004/0.167*100%) =0.167±2 % g 4.mass of O = 0.0800±(0.004/0.0800*100%) =0.0800±5% g 5.Mole O = (0.0800±5%g) /(15.999g/ seawall) =0.00500 ±5%mol 6.Mole Mg = (0.167±2% g)/(24.305g/mol) =0.00687±2%mol 7. relation balance of Mg = 0.00687/0.

00500 ±(2 % +5%)mol =1.37±7%mol =1.37± (7*1.37/100) =1.37±0.1 8.Relative counterpoise of O = 0.00500 /0.00500 ±(5%+5%) =1.00±10% =1.00±(10*1.0! 0/100) =1.00±0.1 9.Empirical Formula= Mg1.37±0.1O1.00±0.1 =MgO Table 2 Mass and relative ratio of Mg and O and metrical empirical formula for magnesium oxide as determined by its relative ratio. Mass of O± uncertainties (g)Mass of Mg ± uncertainties(g)Number of Mole ± % of uncertainties Relative ratio ± uncertaintiesEmpirical Formula 0.167 ±0.0040.0800± 0.004OMgOMgMgO... If you want to get a salutary essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper