PTHH: \(4P+5O_2\underrightarrow{t^o}2P_2O_5\)
a) \(n_P=\dfrac{1,24}{31}=0,04\left(mol\right)\)
Theo PTHH: \(n_{P_2O_5}=\dfrac{0,04\cdot2}{4}=0,02\left(mol\right)\)
\(\Rightarrow m_{P_2O_5}=n_{P_2O_5}\cdot M_{P_2O_5}=0,02\cdot142=2,84\left(g\right)\)
b) Theo PTHH: \(n_{O_2}=\dfrac{0,04\cdot5}{4}=0,05\left(mol\right)\)
\(\Rightarrow V_{O_2\left(dkc\right)}=n_{O_2}\cdot24,79=0,05\cdot24,79=1,2395\left(l\right)\)