Gọi \(\left\{{}\begin{matrix}n_{CO}=a\left(mol\right)\\n_{CH_4}=b\left(mol\right)\end{matrix}\right.\Rightarrow28a+16b=2,04\left(1\right)\)

\(n_{CaCO_3}=\dfrac{9,6}{100}=0,096\left(mol\right)\)

PTHH: \(2CO+O_2\xrightarrow[]{t^o}2CO_2\)

               a------------>a

             \(CH_4+2O_2\xrightarrow[]{t^o}CO_2+2H_2O\)

               b---------------->b

            \(Ca\left(OH\right)_2+CO_2\rightarrow CaCO_3\downarrow+H_2O\)

                                0,096<--0,096

`=> a + b = 0,096 (2)`

`(1), (2) => a = 0,042; b = 0,054`

\(\Rightarrow\left\{{}\begin{matrix}\%V_{CO}=\dfrac{0,042}{0,042+0,054}.100\%=43,75\%\\\%V_{CH_4}=100\%-43,75\%=56,25\%\end{matrix}\right.\)

a)\(n_{CaCO_3}=\dfrac{2}{100}=0,02mol\)

\(CO_2+Ca\left(OH\right)_2\rightarrow CaCO_3+H_2O\)

0,02                           0,02

\(CH_4+2O_2\rightarrow CO_2+2H_2O\)

0,02                  0,02

\(V_{CH_4}=0,02\cdot22,4=0,448l\)

b) \(V_{CH_4}=90\%V_{tựnhiên}\)

\(\Rightarrow V_{tựnhiên}=\dfrac{V_{CH_4}}{90\%}=\dfrac{0,448}{90\%}\approx0,5l\)

a, \(C_2H_2+2Br_2\rightarrow C_2H_2Br_4\)

\(n_{Br_2}=\dfrac{16}{160}=0,1\left(mol\right)\)

Theo PT: \(n_{C_2H_2}=\dfrac{1}{2}n_{Br_2}=0,05\left(mol\right)\)

\(\Rightarrow V_{C_2H_2}=0,05.22,4=1,12\left(l\right)\)

\(\Rightarrow V_{CH_4}=3,36-1,12=2,24\left(l\right)\)

b, \(CH_4+2O_2\underrightarrow{t^o}CO_2+2H_2O\)

\(2C_2H_2+5O_2\underrightarrow{t^o}4CO_2+2H_2O\)

\(n_{CH_4}=\dfrac{2,24}{22,4}=0,1\left(mol\right)\)

Theo PT: \(n_{O_2}=2n_{CH_4}+\dfrac{5}{2}n_{C_2H_2}=0,325\left(mol\right)\)

\(\Rightarrow V_{O_2}=0,325.22,4=7,28\left(l\right)\Rightarrow V_{kk}=5V_{O_2}=36,4\left(l\right)\)

Theo PT: \(n_{CO_2}=n_{CH_4}+2n_{C_2H_2}=0,2\left(mol\right)\)

\(CO_2+Ca\left(OH\right)_2\rightarrow CaCO_{3\downarrow}+H_2O\)

\(\Rightarrow n_{CaCO_3}=n_{CO_2}=0,2\left(mol\right)\Rightarrow m_{CaCO_3}=0,2.100=20\left(g\right)\)

Gọi \(\left\{{}\begin{matrix}n_{C_2H_6}=a\left(mol\right)\\n_{C_2H_2}=b\left(mol\right)\end{matrix}\right.\left(đk:a,b>0\right)\)

\(n_{kt}=n_{CaCO_3}=\dfrac{150}{100}=1,5\left(mol\right)\)

PTHH: 

\(CO_2+Ca\left(OH\right)_2\rightarrow CaCO_3\downarrow+H_2O\)

1,5<--------------------1,5

\(2C_2H_6+7O_2\underrightarrow{t^o}4CO_2+6H_2O\)

a----------------->2a

\(2C_2H_2+5O_2\underrightarrow{t^o}4CO_2+2H_2O\)

b------------------>2b

\(\rightarrow\left\{{}\begin{matrix}30a+26b=21,5\\2a+2b=1,5\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}a=0,5\left(mol\right)\\b=0,25\left(mol\right)\end{matrix}\right.\left(TM\right)\\ \rightarrow\left\{{}\begin{matrix}\%V_{C_2H_6}=\dfrac{0,5}{0,5+0,25}.100\%=66,67\%\\\%V_{C_2H_2}=100\%-66,67\%=33,33\%\end{matrix}\right.\)

\(a)\\ 2CO + O_2 \xrightarrow{t^o} 2CO_2\\ 2H_2 +O_2 \xrightarrow{t^o} 2H_2O\\ CO_2 + Ca(OH)_2 \to CaCO_3 + H_2O\\ CuO + CO \xrightarrow{t^o} Cu + CO_2\\ CuO + H_2 \xrightarrow{t^o} Cu + H_2O\\ \)

\(b) n_{CO_2} = n_{CaCO_3} = \dfrac{20}{100} = 0,2(mol)\\ n_{Cu} = n_{CO} + n_{H_2} = 0,2 + n_{H_2} = \dfrac{19,2}{64}=0,3(mol)\\ \Rightarrow n_{H_2} = 0,3 -0,2 = 0,1(mol)\\ \Rightarrow V = 2(0,2 + 0,1).22,4 = 13,44(lít)\\ c)\\ \)

\( \%V_{CO} = \dfrac{0,2}{0,2 + 0,1}.100\% = 66,67\%\\\%V_{H_2} = 100\%- 66,67\% = 33,33\%\\\%m_{CO} = \dfrac{0,2.28}{0,2.28+0,1.2}.100\% =96,55\%\\\%m_{H_2} = 100\%-96,55\% = 3,45\%\)