a) \(V_{N_2\left(kk\right)}=28.\dfrac{4}{5}=22,4\left(l\right)\)
\(\Rightarrow V_{N_2\left(A\right)}=22,4+11,2=33,6\left(l\right)\)
=> \(\%V_{N2\left(A\right)}=\dfrac{33,6}{5,6+11,2+28}.100=75\%\)
b) Ta có % về thể tích cũng là % về số mol
=> %nN2(A) = 75%
c)\(n_{N_2\left(A\right)}=\dfrac{33,6}{22,4}=1,5\left(mol\right)\)
\(\Rightarrow\%m_{N_2\left(A\right)}=\dfrac{1,5.28}{\dfrac{5,6}{22,4}.17+\dfrac{11,2}{22,4}.28+\dfrac{28}{22,4}.29}.100=77,06\%\)