a) \(n_{N_2O}=\dfrac{3,3}{44}=0,075\left(mol\right)\)

=> \(V_{N_2O}=0,075.22,4=1,68\left(l\right)\)

\(n_{CO_2}=\dfrac{95,48}{44}=2,17\left(mol\right)\)

=> \(V_{CO_2}=2,17.22,4=48,608\left(l\right)\)

\(n_{SO_2}=0,5\left(mol\right)\)

=> \(V_{SO_2}=0,5.22,4=11,2\left(l\right)\)

b) \(n_{CO_2}=0,08\left(mol\right)\)

\(n_{NH_3}=0,09\left(mol\right)\)

=> \(V_{hh}=\left(0,08+0,09\right).22,4=3,808\left(l\right)\)

c) \(n_{CO_2}=\dfrac{0,88}{44}=0,02\left(mol\right)\)

\(n_{NH_3}=\dfrac{0,68}{17}=0,04\left(mol\right)\)

=> \(V_{hh}=\left(0,02+0,04\right).22,4=1,344\left(l\right)\)

:Hãy cho biết thể tích khí ở đktc của: a)3,3 g N2O; 95,48 g CO2; 0,5 N phân tử SO2.

n _N2O=\(\dfrac{3,3}{44}=0,075mol\)

=>V_N2O=0,075.22,4=1,68l

n _CO2=\(\dfrac{95,48}{44}\)=2,17mol

=>V_CO2=2,17.22,4=48,608l
nSO2=0,5N6N=112(mol)

n _SO2=\(\dfrac{0,5N}{6N}=\dfrac{1}{12}mol\)

=>V_SO2=\(\dfrac{1}{12}.22,4=\dfrac{28}{35}\)mol

b)Hỗn hợp khí gồm: 0,08 N phân tử CO2; 0,09 N phân tử NH3. c)Hỗn hợp khí gồm: 0,88 g CO2; 0,68 g NH3.

=>n _hh=\(\dfrac{0,08N}{6N}+\dfrac{0,09N}{6N}=\dfrac{17}{600}N\)

=>V_{hhCO2, NH3}=\(\dfrac{17}{600}.22,4=\dfrac{238}{375}l\)

->n_hh=\(\dfrac{0,88}{44}+\dfrac{0,68}{17}=0,06mol\)

=>V_{hhCO2, NH3}=0,06.22,4=1,344l

1.

\(a.\)

\(V_{hh}=\left(0.1+0.2+0.02+0.03\right)\cdot24=8.4\left(l\right)\)

\(b.\)

\(V_{hh}=\left(0.04+0.015+0.06+0.08\right)\cdot24=4.68\left(l\right)\)

\(2.\)

\(a.\)

\(V_{H_2}=0.5\cdot22.4=11.2\left(l\right)\)

\(V_{O_2}=0.8\cdot22.4=17.92\left(l\right)\)

\(b.\)

\(V_{CO_2}=2\cdot22.4=44.8\left(l\right)\)

\(V_{CH_4}=3\cdot22.4=67.2\left(l\right)\)

\(c.\)

\(V_{N_2}=0.9\cdot22.4=20.16\left(l\right)\)

\(V_{H_2}=1.5\cdot22.4=33.6\left(l\right)\)

+ \(M_{CO_2}=12+16.2=44\left(\dfrac{g}{mol}\right)\)

\(n_{CO_2}=\dfrac{m}{M}=\dfrac{11}{44}=0,25mol\)

+ \(n_{H_2}=\dfrac{9.10^{23}}{6.10^{23}}=1,5mol\)

\(V_{H_2\left(đktc\right)}=n.22,4=1,5.22,4=33,6\left(l\right)\)

Câu 2

\(n_{O_2}=\dfrac{V_{O_2\left(đktc\right)}}{22,4}=\dfrac{6,72}{22,4}=0,3\left(mol\right)\)

Số phân tử oxi \(=\)\(0,3.6.10^{23}=1,8.10^{23}\)

\(M_{O_2}=16.2=32\left(\dfrac{g}{mol}\right)\)

\(m_{O_2}=n.M=0,3.32=9,6g\)

\(n=\dfrac{m}{M}=\dfrac{13,2}{44}=0,3mol\)

1 phân tử \(CO_2\)

\(V=n\cdot22,4=0,3\cdot22,4=6,72\left(l\right)\)

Vấn đề em hỏi là gì nhỉ ?

Í bạn là 6,022 . 10^{23 ?}

\(a)n_{CO_2}=\dfrac{11}{44}=0,25\left(mol\right)\)

\(b)n_{H_2}=\dfrac{9.10^{23}}{6.10^{23}}=1,5\left(mol\right)\)

\(\Rightarrow V_{H_2}=1,5.22,4=33,6\left(l\right)\)

V C O 2 = n C O 2  . 22,4 = 0,25.22,4 = 5,6 (l)

V O 2 = n O 2 .22,4 = 0,25.22,4 = 5,6 (l)

n N 2 == 0,75(mol)

→ V N 2 = n N 2 .22,4 = 0,75.22,4= 16,8 (l)

n C O 2 == 0,2 (mol)

→ V C O 2 = n C O 2 . 22,4 = 0,2.22,4 = 4,48 (l)

n H 2 ==1,5(mol)

→ V H 2 = n H 2 . 22,4 = 1,5. 22,4 = 33,6 (l)

n C O == 0,05(mol)

→ V C O = n C O . 22,4 = 0,05. 22,4 = 1,12 (l)

nSO₂=m:M=6,4:64=0,1(mol)

VSO₂=n.22,4=0,1.22,4=2,24(l)

nCO₂=m:M=4,4:44=0,1(mol)

VCO₂=n.22,4=0,1.22,4=2,24(l)

nH₂=S:6.10²³=1,2.10²³:6.10²³=0,2(mol)

VH₂=n.22,4=0,2.22,4=4,48(l)

\(a.n_{SO_2}=\dfrac{m}{M}=\dfrac{6,4}{64}=0,1\left(mol\right)\\ n_{CO_2}=\dfrac{m}{M}=\dfrac{4,4}{44}=0,1\left(mol\right)\\ \Rightarrow n_{hh}=n_{SO_2}+n_{CO_2}=0,1+0,1=0,2\left(mol\right)\\ \Rightarrow V_{hh}=n.22,4=0,2.22,4=4,48\left(l\right)\)

\(n_{H_2}=\dfrac{1,2.10^{23}}{6.10^{23}}=0,2\left(mol\right)\Rightarrow V_{H_2}=n.22,4=0,2.22,4=4,48\left(l\right)\)

V O 2  = n O 2 .22,4 = 0,05.22,4= 1,12(l)

V H 2  = n H 2 .22,4= 0,15.22,4= 3,36(l)

V C O 2  = n C O 2 .22,4=14.22,4 = 313,6(l)