tenemos la reaccion Ca+HCL=CaCL2+H2. a) Ajustala b) Que masa de HCL se precisara para reaccionar con 20g de Ca. c) Que masa de CaCL2 se formara
Respuestas
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Mm HCl = 36.45 g/mol
CaCl2 = 111 g/mol
Ca = 40 g/mol
a. Ca + 2 HCl → CaCl2 + H2
b.
g HCl = 20 g Ca x 1 mol Ca x 2 mol HCl x 36.5 g HCl
`````````````` `````````````` ``````````````
40 g Ca 1 mol Ca 1 mol HCl
g = 36.5 g de HCl
c.
g CaCl2 = 20 g Ca x 1 mol Ca x 1 mol CaCl2 x 111 g CaCl2
`````````````` ````````````````` ``````````````````
40 g Ca 1 mol Ca 1 mol CaCl2
g = 55.5 g de CaCl2
CaCl2 = 111 g/mol
Ca = 40 g/mol
a. Ca + 2 HCl → CaCl2 + H2
b.
g HCl = 20 g Ca x 1 mol Ca x 2 mol HCl x 36.5 g HCl
`````````````` `````````````` ``````````````
40 g Ca 1 mol Ca 1 mol HCl
g = 36.5 g de HCl
c.
g CaCl2 = 20 g Ca x 1 mol Ca x 1 mol CaCl2 x 111 g CaCl2
`````````````` ````````````````` ``````````````````
40 g Ca 1 mol Ca 1 mol CaCl2
g = 55.5 g de CaCl2
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