\(n_C=\dfrac{7,5.96\%}{12}=0,6\left(mol\right)\\ C+O_2-^{t^o}\rightarrow CO_2\\ n_{O_2}=n_C=0,6\left(mol\right)\\ \Rightarrow V_{O_2}=0,6.22,4=13,44\left(l\right)\)

B1:

\(n_C=\dfrac{96\%.14.1000}{12}=1120\left(mol\right)\\ n_S=\dfrac{2,56\%.14.1000}{32}=11,2\left(mol\right)\\ C+O_2\rightarrow\left(t^o\right)CO_2\\ S+O_2\rightarrow\left(t^o\right)SO_2\\ n_{SO_2}=n_S=11,2\left(mol\right)\\ n_{CO_2}=n_C=1120\left(mol\right)\\ V_{CO_2\left(đktc\right)}=1120.22,4=25088\left(l\right)\\ n_{SO_2\left(đktc\right)}=11,2.22,4=250,88\left(l\right)\)

B2:

\(n_{C_2H_6}=\dfrac{1,8.\left(100\%-2\%\right).1000}{22,4}=78,75\left(mol\right)\\ C_2H_6+\dfrac{7}{2}O_2\rightarrow\left(t^o\right)2CO_2+3H_2O\\ n_{O_2\left(đktc\right)}=\dfrac{7}{2}.78,75=275,625\left(mol\right)\\ V_{O_2\left(đktc\right)}=275,625.22,4=6174\left(l\right)=6,174\left(m^3\right)\)

$m_S = 24.0,5\% = 0,12(kg)$

$m_C = 24.(100\% - 0,5\% - 1,5\%) = 23,52(kg)$

$\Rightarrow n_S = 0,00375(kmol) = 3,75(mol)$

$n_C = 1,96(kmol) = 1960(mol)$

$C + O_2 \xrightarrow{t^o} CO_2$
$S + O_2 \xrightarrow{t^o} SO_2$

Theo PTHH : 

$n_{CO_2} = n_C = 1960(mol) ; n_{SO_2} = n_S = 3,75(mol)$

$\Rightarrow V_{CO_2} = 1960.22,4 = 43904(lít)$
$\Rightarrow V_{SO_2} = 3,75.22,4 = 84(lít)$

PTHH: \(C+O_2\xrightarrow[]{t^o}CO_2\)

Tính theo sản phẩm

Ta có: \(n_C=n_{CO_2}=\dfrac{264}{44}=6\left(mol\right)\)

\(\Rightarrow\%m_C=\dfrac{12\cdot6}{120}\cdot100\%=60\%\) \(\Rightarrow\%_{tạp.chất}=40\%\)

\(n_{CO_2}=\frac{264}{44}=6(mol)\\ C+O_2\buildrel{{t^o}}\over\longrightarrow CO_2\\ n_{C}=n_{CO_2}=6(mol)\\ m_{C}=6.12=72(g)\\ \%m_{\text{tạp chât}}=\frac{120-72}{120}.100\%=40\%\)

Đổi: 24kg = 24000g

24kg than đá có chứa 0,5% tạp chất lưu huỳnh và 1,5% tạp chất khác không cháy được

⇒ nS = 120 / 32 = 3,75 mol

\(n_{CO_2}=\dfrac{25}{44}\left(kmol\right)\)

PTHH: C + O₂ --t^o--> CO₂

         \(\dfrac{25}{44}\)<---------------\(\dfrac{25}{44}\)

\(n_C=\dfrac{\dfrac{25}{44}}{85\%}=\dfrac{125}{187}\left(kmol\right)\\ m_{than}=\dfrac{\dfrac{125}{187}.12}{100\%-7\%}=8,625\left(kg\right)\)

\(m_S=0,5\%.24=0,12\left(kg\right)=120\left(g\right)\\ \Rightarrow n_S=\dfrac{120}{32}=3,75\left(mol\right)\\ m_C=1,5\%.24=0,36\left(kg\right)=360\left(g\right)\\ \Rightarrow n_C=\dfrac{360}{12}=30\left(mol\right)\\ S+O_2\rightarrow\left(t^o\right)SO_2\\ C+O_2\rightarrow\left(t^o\right)CO_2\\ n_{SO_2}=n_S=3,75\left(mol\right)\\ \Rightarrow V_{SO_2\left(đktc\right)}=3,75.22,4=84\left(l\right)\\ n_{CO_2}=n_C=30\left(mol\right)\\ \Rightarrow V_{CO_2\left(đktc\right)}=22,4.30=672\left(l\right)\)

(Chắc đề là 1,5% C)

24kg = 24000g

\(m_S=24000.0,5\%=120\left(g\right)\\ n_S=\dfrac{120}{32}=3,75\left(mol\right)\\ \%C=100\%-0,5\%-1,5\%=98\%\\ m_C=24000.98\%=23520\left(g\right)\\ n_C=\dfrac{23520}{12}=1960\left(mol\right)\)

PTHH:

      S + O₂ → (t^o) SO₂

3,75     3,75          3,75

      C + O₂  → (t^o) CO₂

   1960  1960         1960

\(V_{SO_2}=22,4.3,75=84\left(l\right)\\ V_{CO_2}=22,4.1960=43904\left(l\right)\)

\(m_C=12\cdot\left(100-1.5-0.5\right)\%=11.76\left(kg\right)\)

\(n_C=\dfrac{11.76}{12}=0.98\left(kmol\right)\)

\(m_S=12\cdot0.5=6\left(kg\right)\)

\(n_S=\dfrac{6}{32}=0.1875\left(kmol\right)\)

\(S+O_2\underrightarrow{t^0}SO_2\)

\(C+O_2\underrightarrow{t^0}CO_2\)

\(V_{O_2}=\left(0.1875+0.98\right)\cdot22.4=26.152\left(kl\right)=26125\left(l\right)\)

\(n_C = \dfrac{10(100\%-10\%)}{12} = 0,75(kmol)\\ C + O_2 \xrightarrow{t^o} CO_2\\ n_{CO_2} = n_C = 0,75(kmol) = 750(mol)\\ V_{CO_2} = 750.22,4 = 16800(lít)\)