\(1,\\ a,m_{hh}=3.44+2.28=188(g)\\ b,m_{hh}=\dfrac{2,24}{22,4}.64+\dfrac{1,12}{22,4}.32=8(g)\\ 2,\\ a,V_{hh}=(\dfrac{4,4}{44}+\dfrac{0,4}{2}).22,4=6,72(l)\\ b,V_{hh}=(\dfrac{6.10^{23}}{6.10^{23}}+\dfrac{3.10^{23}}{6.10^{23}}).22,4=33,6(l)\)

\(a.n_{CO_2}=\dfrac{m_{CO_2}}{M_{CO_2}}=\dfrac{4,4}{44}=0,1\left(mol\right)\\ \Rightarrow V_{CO_2}=n_{CO_2}.22,4=0,1.22,4=2,24\left(l\right)\\ n_{O_2}=\dfrac{m_{O_2}}{M_{O_2}}=\dfrac{3,2}{32}=0,1\left(mol\right)\) 

\(\Rightarrow V_{O_2}=n_{O_2}.22,4=0,1.22,4=2,24\left(l\right)\) 

\(n_{H_2}\)  = 2mol

=>\(V_{H_2}\) = 2. 22,4 = 44,8l

\(n_{O_2}\) = 0,0875 mol

=>\(V_{O_2}\) = 0,0875 . 22,4 = 1,96l

\(n_{CO_2}\) = 0,5 mol

=>\(V_{CO_2}\)  = 0,5 .22,4 = \(11,2\left(l\right)\) 

\(n_{O_2}\)  = \(0,2\left(mol\right)\) 

=>\(V_{O_2}\) = 0,2 . 22,4 = \(4,48\left(l\right)\) 

b) Ta có:

\(n_{NH_3}=\dfrac{6.10^{23}}{6.10^{23}}=1\left(mol\right)\\ n_{O_2}=\dfrac{3.10^{23}}{6.10^{23}}=0,5\left(mol\right)\\ \Sigma n_{hh}=1+0,5=1,5\left(mol\right)\\ V_{hh}=1,5.22,4=33,6\left(l\right)\)

N phân tử = 1 mol phân tử

\(\Rightarrow n_{O2}=1mol;n_{N_2}=2mol;n_{CO_2}=1,5mol\)

\(\Rightarrow m_{hh}=1.32+2.28+1,5.44=154g\)

b. \(m_{hh}=0,1.56+0,2.64+0,3.65+0,25.27=44,65g\)

c. \(n_{O_2}=\dfrac{2,24}{22,4}=0,1mol\)

\(n_{H_2}=\dfrac{1,12}{22,4}=0,05mol\)

\(n_{HCl}=\dfrac{6,72}{22,4}=0,3mol\)

\(n_{CO_2}=\dfrac{0,56}{22,4}=0,025mol\)

\(\Rightarrow m_{hh}=0,1.32+0,05.2+0,3.36,5+0,025.44=15,35g\)

\(n_{SO_2\left(dktc\right)}=\dfrac{V}{22,4}=\dfrac{2,24}{22,4}=0,1\left(mol\right)\\ m_{SO_2}=n\cdot M=0,1\cdot\left(32+16\cdot2\right)=6,4\left(g\right)\)

\(n_{O_2\left(dktc\right)}=\dfrac{V}{22,4}=\dfrac{1,12}{22,4}=0,05\left(mol\right)\\ m_{O_2}=n\cdot M=0,05\cdot32=1,6\left(g\right)\)

\(=>m_{hh}=1,6+6,4=8\left(g\right)\)

\(n_{SO_2}=\dfrac{V_{\left(\text{đ}ktc\right)}}{22,4}=\dfrac{2,24}{22,4}=0,1\left(mol\right)\\ \Rightarrow m_{SO_2}=n.M=0,1.64=6,4\left(g\right)\\ n_{O_2}=\dfrac{V_{\left(\text{đ}ktc\right)}}{22,4}=\dfrac{1,12}{22,4}=0,05\left(mol\right)\\ \Rightarrow m_{O_2}=n.M=0,05.32=1,6\left(g\right)\\ \Rightarrow m_{hh}=m_{SO_2}+m_{O_2}=6,4+1,6=8\left(g\right)\)

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Trong A : 

\(n_{CO_2}=n_X=a\left(mol\right)\)

Trong B: 

\(n_{N_2}=2b\left(mol\right),n_{CO_2}=3b\left(mol\right)\)

\(n_A=2a=0.1\left(mol\right)\Rightarrow a=0.05\)

\(n_B=5b=0.05\left(mol\right)\Rightarrow b=0.01\)

\(m=0.05\cdot44+0.05\cdot X+0.02\cdot28+0.03\cdot44=4.18\left(g\right)\)

\(\Rightarrow X=2\)

\(X:H_2\)

a, khối lượng của 2,5 mol CuO là:
\(m=n.M=2,5.80=200\left(g\right)\)

b, số mol của 4,48 lít khí CO2 (đktc) là:
\(n=\dfrac{V}{22,4}=\dfrac{4,48}{22,4}=0,2\left(mol\right)\)

a.

mCuO=n.M=2,5.(1.64+1.16)= 200 mol

b.nCO₂=V/22,4=4,48:22,4=0,2 mol

Gọi 2 hh trên lần lượt là A và B

\(M_A=\dfrac{\dfrac{8,96}{22,4}.71+\dfrac{5,6}{22,4}.32}{\dfrac{8,96}{22,4}+\dfrac{5,6}{22,4}}=56\left(\dfrac{g}{mol}\right)\)

\(M_B=\dfrac{0,2.64+0,4.44}{0,2+0,4}=51\left(\dfrac{g}{mol}\right)\)

=> d_A/B = \(\dfrac{56}{51}=1,1\)

Mình làm mẫu một ý nha:

a, Gọi hh SO₂ và H₂ là X; O₂ và N₂ là Y

\(\Rightarrow\left\{{}\begin{matrix}\left\{{}\begin{matrix}m_X=0,02.64+0,5.2=2,28\left(g\right)\\n_X=0,02+0,5=0,52\left(mol\right)\end{matrix}\right.\\\left\{{}\begin{matrix}m_Y=0,2.32+0,5.28=20,4\left(g\right)\\n_Y=0,2+0,5=0,7\left(mol\right)\end{matrix}\right.\end{matrix}\right.\)

\(\Rightarrow\left\{{}\begin{matrix}M_X=\dfrac{2,28}{0,52}=4,4\left(\dfrac{g}{mol}\right)\\M_Y=\dfrac{20,4}{0,7}=29,1\left(\dfrac{g}{mol}\right)\end{matrix}\right.\)

\(\Rightarrow d_{X/Y}\)\(=\dfrac{4,4}{29,1}=0,15\)