Theo ĐLBTNT: \(\left\{{}\begin{matrix}n_S=n_{SO_2}=\dfrac{4,48}{22,4}=0,2\left(mol\right)\\n_H=2.n_{H_2O}=2.\dfrac{3,6}{18}=0,4\left(mol\right)\end{matrix}\right.\)
`=>` \(n_{O\left(A\right)}=\dfrac{6,8-0,2.32-0,4}{16}=0\left(mol\right)\)
`=>` A không chứa O
`=>` \(n_H:n_S=0,4:0,2=2:1\)
`=>` A là `H_2S`
Tên: hiđro sunfua