Question

Cuantos gramos de zinc reaccionan con 43gr de hidroxido de sodio para producir hidrogeno gaseoso
AYUDAAAA!

Answer 1

      Zn  + 2NaOH → Na2ZnO2 + H2


Mm NaOH = 40 g/mol
             Zn = 65.39 g/mol

g Zn= 43 g NaOH x 1 mol NaOH  x 1 mol Zn     x  65.39 g Zn
                                 ````````````````     ````````````        ````````````````
                                   40 g NaOH   2 mol NaOH      1mol Zn

g = 35,147 de zinc