\(\%H_2=100-20-30=50\%\)
\(GS:n_Z=1\left(mol\right)\)
\(\Rightarrow n_{H_2}=0.5\left(mol\right),n_{CO_2}=0.2\left(mol\right),n_{H_2S}=0.3\left(mol\right)\)
\(\overline{M}=\dfrac{0.5\cdot2+0.2\cdot44+0.3\cdot34}{1}=20\left(\dfrac{g}{mol}\right)\)
\(d_{\dfrac{Z}{kk}}=\dfrac{20}{29}=0.7\)
Z nhẹ hơn không khí 0.7 (lần)
\(b.\)\(n_{O_2}=\dfrac{9.6}{32}=0.3\left(mol\right)\)
\(\Rightarrow n_Z=0.3\left(mol\right)\)
\(m_Z=\overline{M}\cdot n=20\cdot0.3=6\left(g\right)\)