a. 0.5 mol
b. 25 cm³
c. (i) 75 cm³
(ii) 50 cm³
Further explanation
Avogadro's hypothesis:
In the same T,P and V, the gas contains the same number of molecules
So the ratio of gas volume will be equal to the ratio of gas moles
[tex]\tt \dfrac{V_1}{n_1}=\dfrac{V_2}{n_2}[/tex]
Reaction
2NO(g)+O₂(g)⇒2NO₂(g)
a. mol O₂
[tex]\tt mol~O_2=\dfrac{1}{2}\times 1~mol~NO=0.5[/tex]
b. volume of O₂
[tex]\tt \dfrac{50}{1}=\dfrac{V_2}{0.5}\rightarrow V_2=25[/tex]
c. (i)total volume
[tex]\tt volume~NO+volume~O_2=50+25=75~cm^3[/tex]
(ii)volume of NO₂
[tex]\tt mol~NO_2=mol~NO=1\rightarrow V~NO=V~NO_2=50~cm^3[/tex]
