Question

Calcula la masa de hidroxido de calcio CA(OH)2 necesario para reaccionar con 16,5g de acido clorhidrico HCL

Answer 1

                                  Ca(OH)2 + 2HCl → CaCl2 + 2H2O

 Mm
     HCl = 36.45 g/mol
 Ca(OH)2 = 74 g/mol

g Ca(OH)2 = 16.5 g HCl  x  1 mol HCl  x  1 mol Ca(OH)2  x 74 g Ca(OH)2
                                           ```````````````     ``````````````````````   ````````````````````
                                           36.45 g HCl        2 mol HCl         1 mol Ca(OH)2

g = 16.75 g de Ca(OH)2