Question

30 moli de clor reactioneaza cu hidrogenul pentru a forma acidul clorhidric .Se cere :
a) Ecuatia reactiei chimice
b) Masa de HCl pentru randament 80%
c) Numarul de molecule de HCl .

Answer 1

a) H2 + Cl2 => 2HCl

b) 1 mol Cl2............2*36,5g HCl
30 moli Cl2..............xg HCl

x=73*30=2190g HCl (mt)

n(eta)=mp/mt*100=>mp=n*mt/100=80*2190/100= Calculează !!!

c) 1 mol Cl2.............2 moli HCl
30 moli Cl2............x=60 moli HCl

1 mol HCl......,...6,022*10^23 molecule
60 moli HCl......x molecule

x=6,022*60*10^23 molecule HCl