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2014-09-23T22:28:30+03:00
Mg + 1/2 O2 ---> MgO
masa pura Mg = 54.174 * 92/100 = 49,84 g Mg
24 g Mg........40 g MgO
49,84 g Mg.........x g MgO       x = 83 g MgO
MgO + H2O ---> Mg(OH)2
40 g MgO............58 g Mg(OH)2
83 g MgO............x g Mg(OH)2          x = 120,35 g Mg(OH)2