a) \(n_X=n_{SO_2}+n_{CO_2}+n_{N_2}=0,25+0,15+0,65=1,05\left(mol\right)\)
=> \(V_{hhX}=1,05.22,4=23,52\left(l\right)\)
b) \(\left\{{}\begin{matrix}m_{SO_2}=0,25.64=16\left(g\right)\\m_{CO_2}=0,15.44=6,6\left(g\right)\\m_{N_2}=0,65.28=18,2\left(g\right)\end{matrix}\right.\)
=> \(m_{hhX}=m_{SO_2}+m_{CO_2}+m_{N_2}=16+6,6+18,2=40,8\left(g\right)\)
=> \(\left\{{}\begin{matrix}\%m_{SO_2}=\dfrac{16}{40,8}.100\%=39,22\%\\\%m_{CO_2}=\dfrac{6,6}{40,8}.100\%=16,18\%\\\%m_{N_2}=\left(100-39,22-16,18\right)\%=44,6\%\end{matrix}\right.\)
c) \(M_X=\dfrac{m_X}{n_X}=\dfrac{40,8}{1,05}=\dfrac{272}{7}\left(g/mol\right)\)
=> \(d_{X/kk}=\dfrac{\dfrac{272}{7}}{29}=1,34\)
=> hh khí X nặng hơn không khí
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