Cuantos gramos de HCl se consumen en la reacción de 425 g de una mezcla 35.2% MgCO3 y 64.8 % de Mg(OH)2 masa
Ecuacion
Mg(OH)2 + 2HCl -> MgCl2+2H2O
MgCO3 + 2HCl -> MgCl2 + H2O + CO2
Rputa : 474 gramos (asi dice en el libro)
Respuestas a la pregunta
Calcular gramos:
425 g ---- 100 %
X ---- 35.2 %
X = 149.6 g Carbonato
425 g ---- 100 %
X ---- 64.8 %
X = 129.4 g hidróxido
2. calcular gramos de HCl
Carbonato
Mm MgCO3 0 84..3 g/mol
g HCl = 149.6 g MgCO3 x 1 mol MgCO3 x 2 mol HCl x 36.45 g HCl
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84.3 g MgCO3 1 mol MgCO3 1 mo HCl
g HCl = 129.4
Hidróxido
Mm Mg(OH)2 = 58.3 g/mol
g HCl = 275.4 g Mg(OH)2 x 1 molMg(OH)2 x 2 mol HCl x 36.45 g HCl
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58.3 g Mg(OH)2 1 mol Mg(OH)2 1 mo HCl
g HCl = `344.4
3. g HCl = 129.4 g + 344.4 g = 473.8