a) \(n_{H_2}=\dfrac{2,479}{24,79}=0,1\left(mol\right)\)
PTHH: 2H2 + O2 --to--> 2H2O
0,1->0,05
=> VO2 = 0,05.24,79 = 1,2395 (l)
b) \(n_S=\dfrac{12}{32}=0,375\left(mol\right)\)
PTHH: S + O2 --to--> SO2
0,375->0,375
=> VO2 = 0,375.24,79 = 9,29625(l)
c) \(n_{Na}=\dfrac{69}{23}=3\left(mol\right)\)
PTHH: 4Na + O2 --to--> 2Na2O
3-->0,75
=> VO2 = 0,75.24,79 = 18,5925 (l)