Question: One method to obtain pure Silicon is through a process where the following reactions: SiO2 + 2 C ------ Si +2 CO Si+ 2 Cl2
One method to obtain pure Silicon is through a process where the following reactions:

SiO2 + 2 C ------ Si +2 CO
Si+ 2 Cl2 ----- SiCl4
SiCl4+ 2 Mg ---- 2 MgCl2 + Si
In one particular case, 100 pounds of a solid mixture containing 51.94% SiO2, 15.58% C and 32.48% Mg together with 0.13 mol-lb of Chlorine gas (Cl2), obtaining as a product 76.05 pounds of solid product and a gaseous mixture whose molar composition is 2.28% Cl2, 1.21% SiCl4, and 96.51% CO. Find: i) The percentage excess of the reaction. ii) The conversion of the three reactions. iii) The weight composition of the final solid product. iv) The pounds of silicon produced.
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I enclose as you see in the work guide, I'm sorry but it is in Spanish

SiO2 (s) + 2C(s) Si(s) + 2CO(g) Si(s) + 2Cl2(g) SiCl4(g) SiCl4(g) + 2Mg(s) 2MgCl2(s) + Si(s) 4. Un mtodo para obtener Silicio puro es a travs de un proceso en donde se producen las siguientes reacciones: SiO2(s) + 2C(s) S(s) + 2CO(g) Si(s) + 2Cl2(g) SiCl4(g) SiCl4(g) + 2Mg(s) 2MgCl2(s) + Si(s) En un caso determinado, al proceso se alimentan 100 libras de una mezcla slida que contiene 51.94% de SiO2, 15.58 % de C y 32.48% de Mg junto con 0.13 moles-lb de gas Cloro (Cl2), obtenindose como producto 76.05 libras de producto slido y una mezcla gaseosa cuya composicin molar es 2.28% Cl2, 1.21% SiCl4 y 96.51% de CO. Encuentre: i) El porcentaje de exceso de la reaccin. ii) La conversin de las tres reacciones. iii) La composicin en peso del producto slido final. iv) Las libras de silicio producidas
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