2KClO3 -> 2KCl + 3O2 (1)
CH4 + 2O2 -> CO2 + 2H2O (2)
2H2 + O2 -> 2H2O (3)
Theo PTHH 2 ta có:
nO2(2)=2nCH4=1(mol)
nO2(3)=\(\dfrac{1}{2}\)nH2=0,125(mol)
=>\(\sum\)nO2=1,125(mol)
Theo PTHH 1 ta có:
nKClO3=\(\dfrac{2}{3}\)nO2=0,75(mol)
2KMnO4 -> K2MnO4 + MnO2 + O2 (1)
4Al + 3O2 -> 2Al2O3 (2)
2Zn + O2 -> 2ZnO (3)
nAl=0,25(mol)
nZn=0,15(mol)
Theo PTHH 2 và 3 ta có:
nO2(2)=\(\dfrac{1}{2}\)nAl=0,125(mol)
nO2(3)=\(\dfrac{1}{2}\)nZn=0,075(mol)
=>\(\sum\)nO2=0,2(mol)
Theo PTHH 1 ta có:
nKMnO4=2nO2=0,4(mol)