¿Cuantos gramos de magnesio se necesitan para la obtención de 15 gramos de oxído de magnesio?
2 Mg + O2 → 2 MgO
Mm Mg =24 g/mol
MgO = 40 g/mol
calcular gramos de Mg
g Mg = 15 g MgO x 1 mol MgO x 2 mol Mg x 24 g Mg
``````````````````````` ````````````````````` ````````````````````
40 g MgO 2 mol MgO 1 mol Mg
g Mg = 9 g
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¿Cuantos gramos de magnesio se necesitan para la obtención de 15 gramos de oxído de magnesio?
2 Mg + O2 → 2 MgO
Mm Mg =24 g/mol
MgO = 40 g/mol
calcular gramos de Mg
g Mg = 15 g MgO x 1 mol MgO x 2 mol Mg x 24 g Mg
``````````````````````` ````````````````````` ````````````````````
40 g MgO 2 mol MgO 1 mol Mg
g Mg = 9 g