V_A = ( 0.2 + 0.75 + 1.5 ) * 22.4 = 54.88(l) 

m_A = m_SO2 + m_CO2 + m_N2 = 0.2*64 + 0.75*44 + 1.5*28 = 87.8 g 

\(n_{O_2}=\dfrac{6,72}{22,4}=0,3\left(mol\right)\\ n_{CO_2}=\dfrac{4,48}{22,4}=0,2\left(mol\right)\)

PTHH:

2CO + O₂ --t^o--> 2CO₂

0,2<---0,1<--------0,2

2H₂ + O₂ --t^o--> 2H₂O

0,4<--0,2<-------0,2

\(\Rightarrow\left\{{}\begin{matrix}\%V_{CO}=\dfrac{0,2}{0,2+0,4}.100\%=33,33\%\\\%V_{H_2}=100\%-33,33\%=66,67\%\end{matrix}\right.\)

\(n_{CO_2}=\dfrac{6,72}{22,4}=0,3\left(mol\right)\\ n_{O_2}=\dfrac{4,48}{22,4}=0,2\left(mol\right)\)

PTHH: 2CO + O₂ --t^o--> 2CO₂

            0,3<--0,15<------0,3

            2H₂ + O₂ --t^o--> 2H₂O

            0,1<--0,05

\(\Rightarrow\left\{{}\begin{matrix}\%V_{CO}=\%n_{CO}=\dfrac{0,3}{0,3+0,1}.100\%=75\%\\\%V_{H_2}=100\%-75\%=25\%\end{matrix}\right.\)

Chọn C

25%; 75%.

\(a) Coi : n_{CO_2} = 5(mol) \Rightarrow n_{O_2} = 1(mol)\\ M_A = \dfrac{5.44 + 1.32}{5+1} =42\\ b) n_A = \dfrac{m_A}{M_A} = \dfrac{10,5}{42} = 0,25(mol)\\ V_A = 0,25.22,4 = 5,6(lít)\)

$n_{hỗn\ hợp\ khí} = 0,25 + 0,15 = 0,4(mol)$
$V_{hỗn\ hợp\ khí} = 0,4.22,4 = 8,96(lít)$

Không mất tính tổng quát, giả sử trộn 1 mol A với 4 mol không khí.

\(n_{N_2}=4.80\%=3,2mol\\ n_{O_2}=0,8mol\\ \%n_{N_2\left(bđ\right)}=\dfrac{3,2}{5}.100\%=64\%\\ n_{hhsau}=\dfrac{3,2}{64\%+3,36\%}=\dfrac{2000}{421}\left(mol\right)\\ CO+\dfrac{1}{2}O_2-^{t^0}>CO_2\\ n_{CO}=a;n_{CO_2}=b\left(mol\right)\\ a+b=1\\ a+b+3,2+0,8-\dfrac{1}{2}a=\dfrac{2000}{421}\\ a=\dfrac{210}{421};b=\dfrac{211}{421}\\ \%V_{CO}=\dfrac{\dfrac{210}{421}}{\dfrac{2000}{421}}=10,5\%\\ \%V_{CO_2}=89,5\%\)

\(V_{O_2}=0,25.22,4=5,6\left(l\right)\)

\(V_{N_2}=0,1.22,4=2,24\left(l\right)\)

\(V_{CO_2}=0,45.22,4=10,08\left(l\right)\)

\(V_{hh}=5,6+2,24+10,08=17,92\left(l\right)\)

$V_{hh}=22,4(0,25+0,1+0,45)=17,92(lít)$

$n_{H_2O} = \dfrac{1,2.10^{23}}{6.10^{23}} = 0,2(mol)$
$n_{SO_2} = \dfrac{6,4}{32} = 0,2(mol)$
$\Rightarrow V_{hh} = (1,5 + 2,5 + 0,2 + 0,2).22,4 = 98,56(lít)$
$\Rightarrow m_{hh} = 1,5.44 + 2,5.28 + 0,2.18 + 6,4 = 146(gam)$