Question

En la reacción ajustada: 6 HCl 2 Fe → 2 FeCl3 3H2 a) ¿qué cantidad de HCl reaccionará con 10 g de Fe? b) ¿qué masa de FeCl3 y H2 se formarán? Datos Masas atómicas Fe = 55,85; H = 1; Cl=35,5 .

Answer 1

             6HCl + 2Fe → 2FeCl3 + 3H2
Mm HCl = 36.5 g/mol       Fe = 55.85 g/mol  FeCl3 = 162.35 g/mol       H2 = 2 G/MOL

a) g HCl = 10 g Fe  x  1 mol Fe  x  6 mol HCl  x  36.5 g HCl                                   ````````````    ````````````````   `````````````````                                  55.85 g Fe    2 mol Fe       1 mol HCl
g HCl = 19.60
b) 
g FeCl3 = 10 g Fe  x  1 mol Fe  x  2 mol FeCl3  x  162.35 g FeCl3                                  `````````````   ``````````````````     ``````````````````````                                   55.85 g Fe     2 mol Fe         1 mol FeCl3
g FeCl3 = 29.06
g H2 = 10 g Fe  x  1 mol Fe  x    3 mol H2  x    2 g H2
                             `````````````    ``````````````      `````````````                             55.85 g Fe     2 mol Fe       1 mol H2
g H2 = 0.537