Question

cuantos gramos de acido clorhidrico y de hidroxido de sodio se requieren para preparar 200g de cloruro sodio

Answer 1

                HCl  +  NaOH  →  NaCl  +H2O

Mm NaCl = 58.4 g/mol
         HCl = 36.4 g/mol
      NaOH = 40 g/mol

1. calcular gramos de HCl

g HCl = 200 g NaCl  x  1 mol NaCl  x  1 mol HCl  x  36.4 g HCl
                                     ````````````````   ````````````````    ``````````````
                                     58.4 g NaCl    1 mol NaCl    1 mol HCl

g HCl = 124.66

2. calculkar gramos de NaOH

g NaOH = 200 g NaCl  x  1 mol NaCl  x  1 mol NaOH  x  40 g NaOH
                                         ````````````````    ````````````````       ``````````````````
                                          58.4 g NaCl    1 mol NaCl       1 mol NaOH

g NaOH = 136.98