a/ \(2H_2\left(0,5\right)+O_2\left(0,25\right)\rightarrow2H_2O\left(0,5\right)\)
\(n_{H_2O}=\dfrac{9}{18}=0,5\left(mol\right)\)
\(\Rightarrow V_{H_2}=0,5.22,4=11,2\left(l\right)\)
b/ \(V_{O_2}=0,25.22,4=5,6\left(l\right)\)
\(\Rightarrow V_{kk}=\dfrac{5,6}{20\%}=28\left(l\right)\)
n\(H_2O\) = \(\dfrac{9}{18}=0,5\left(mol\right)\)
PTHH:
2H2 + O2 --to---> 2H2O
0,5......0,25.....................0,5.......(mol)
a/ => V\(H_2\) = 0,5 . 22,4 = 11,2 (lít)
b/ Theo PT => V\(O_2\) = 0,25 . 22,4 = 5,6 (lít)
=> Vkk = V\(O_2\) .\(\dfrac{100}{20}\) = 5,6 . \(\dfrac{100}{20}\) = 28 (lít)