Răspuns:
300g C2H6 +220gC3H8
M,C2H6-=30g/mol M,C3H8=44g/mol
30g etan..........6mol at.H
300g..............x= 6x10 mol.at.H
44g propan.........8 mol at.H
220g.....................x=5x8mol at.H
TOTAL 100mol at.H
1mol atomi...........................N,A= 6,022X10²³atomi
100mol atomi.....................N= 602,2X10²³ atomi H
Explicație: