a.

\(m_{Al}=0.5\cdot27=13.5\left(g\right)\)

\(m_{CO_2}=\dfrac{6.72}{22.4}\cdot44=13.2\left(g\right)\)

\(m_{N_2}=\dfrac{5.6}{22.4}\cdot28=7\left(g\right)\)

\(m_{CaCO_3}=0.25\cdot100=25\left(g\right)\)

b.

\(m_{hh}=\dfrac{3.36}{22.4}\cdot2+\dfrac{5.6}{22.4}\cdot28+0.2\cdot44=16.1\left(g\right)\)

\(a.n=\dfrac{m}{M}=\dfrac{28}{56}=0,5\left(mol\right)\)

\(b.V=\dfrac{n}{22,4}=\dfrac{0,5}{22,4}=0,022\left(l\right)\)

\(c.m=n.M=0,5.28=14\left(g\right)\)

\(a_1.m_{CaCl_2}=n.M=0,25.111=27,75\left(g\right)\\ m_{Cu\left(OH\right)_2}=n.M=0,5.98=49\left(g\right)\\ \Rightarrow m_{hh}=m_{CaCl_2}+m_{Cu\left(OH\right)_2}=27,75+49=76,75\left(g\right)\)

\(b_1.n_{N_2}=\dfrac{V_{\left(dktc\right)}}{22,4}=\dfrac{5,6}{22,4}=0,25\left(mol\right)\\ n_{O_2}=\dfrac{V_{\left(dktc\right)}}{22,4}=\dfrac{3,36}{22,4}=0,15\left(mol\right)\\ m_{N_2}=n.M=0,25.28=7\left(g\right)\\ m_{O_2}=n.M=0,15.32=4,8\left(g\right)\\ \Rightarrow m_{hh}=m_{N_2}+m_{O_2}=7+4,8=11,8\left(g\right)\)

\(c_1.n_{H_2O}=\dfrac{3.10^{23}}{6.10^{23}}=0,5\left(mol\right)\\ n_{CO}=\dfrac{2,4.10^{23}}{6.10^{23}}=0,4\left(mol\right)\\ m_{H_2O}=n.M=0,5.18=9\left(g\right)\\ m_{CO}=n.M=0,4.28=11,2\left(g\right)\\ m_{hh}=m_{H_2O}+m_{CO}=9+11,2=20,2\left(g\right)\)

\(a_2.n_{hh}=n_{Cl_2}+n_{N_2}=0,25+0,3=0,55\left(mol\right)\\ V_{hh\left(dktc\right)}=n.22,4=0,55.22,4=12,32\left(l\right)\)

\(n_{SO_2}=\dfrac{m}{M}=\dfrac{3,2}{64}=0,05\left(mol\right)\\ n_{N_2}=\dfrac{9,8}{28}=0,35\left(mol\right)\\ n_{hh}=n_{SO_2}+n_{N_2}=0,05+0,35=0,4\left(mol\right)\\ V_{hh}=n.22,4=0,4.22,4=8,96\left(l\right)\)

a) CH₄ + 2O₂  → CO₂  + 2H₂O

C₂H₄  + 3O₂ → 2CO₂ + 2H₂O

b) nCO₂ = 4,48/22,4 =0,2 lít

Gọi số mol của CH₄ và C₂H₄ trong hỗn hợp ban đầu lần lượt là x và y ta có:

\(\left\{{}\begin{matrix}16x+28y=3\\x+2y=0,2\end{matrix}\right.\) => x = 0,1 và y = 0,05 (mol)

=> nO₂ = 2nCH₄ + 3nC₂H₄ = 0,35 mol <=> V_O2 = 0,35.22,4 = 7,84 lít

c) mCH₄ = 0,1.16 = 1,6 gam => %mCH₄ =\(\dfrac{1,6}{3}.100\)=53,34% , %mC₂H₄ = 100- 53,34 = 46,67%.

Phần trăm về thể tích bằng phần trăm về số mol.

%V_CH4 = \(\dfrac{0,1}{0,15}.100\)= 66,67%   => %V_C2H4 = 100- 66,67 = 33,33%

\(n_{O_2}=2a\left(mol\right),n_{N_2}=3a\left(mol\right),n_{SO_2}=4a\left(mol\right)\)

\(n_{hh}=2a+3a+4a=9a\left(mol\right)\)

\(\Rightarrow9a=\dfrac{5.4\cdot10^{23}}{6\cdot10^{23}}=0.9\)

\(\Rightarrow a=9\)

\(V_{hh}=0.9\cdot22.4=20.16\left(l\right)\)

\(m_{hh}=0.2\cdot32+0.3\cdot28+0.4\cdot64=40.4\left(g\right)\)

\(a.n_{CO_2}=\dfrac{4,4}{44}=0,1\left(mol\right);n_{O_2}=\dfrac{0,6.10^{23}}{6.10^{23}}=0,1\left(mol\right)\\ V_{hh}=\left(0,5+1,5+0,1+0,1\right).22,4=49,28\left(l\right)\\ b.m_{hh}=0,5.28+1,5.2+4,4+0,1.32=24,6\left(g\right)\)

a, V_{N\(_2\)} ( đktc ) = 0,5 . 22,4 = 11,2 lít

V_{H\(_2\)}  = 1,5 . 22,4 = 33,6 lít

\(n_{CO_2}=\dfrac{4,4}{44}=0,1\) ( mol )

=> \(V_{CO_2}=0,1.22,4=2,24\) ( lít )

\(n_{O_2}=\dfrac{0,6.10^{23}}{6.10^{23}}=0,1\) ( mol )

=> V_{\(O_2\)} = 0,1 .22,4 = 2,24 lít

=> V_hh = 11,2 + 33,6 + 2,24 + 2,24 = 49,28 lít

b, \(m_{N_2}=0,5.28=14\) ( g )

\(m_{H_2}=1,5.2=3\) ( g )

\(m_{CO_2}=0,1.44=4,4\) ( g )

\(m_{O_2}=0,1.32=3,2\) (g)

\(m_{hh}=14+3+4,4+3,2=24,6\) ( g )