Question

cate grame de hidrogen reactioneaza complet cu 50 g de azot pentru a obtine amoniac? cate grame de amoniac se obtin???
AJUTOR URGENT!!!!!

Answer 1

A,H2= 2g/mol
A,N2=28g/mol
miu(M)= (14gN+3x1gH)/mol= 17g/mol NH3

ECUATIA reactiei este: 
1mol   3mol       2mol
N2 +   3H2--->  2NH3
28g......3x2g......2x17g.
50g.......m=.......m'=
m= 50x6/28 gH2=.............................calculeaza
m 50x34/28 gNH3=.............................calculeaza