C+O2​to-->​CO2​

0,3--0,3--0,3

n_C = 3,6 / 12 = 0,3 (mol)

=> V_CO2(đktc) = 0,3 x 22,4 =6,72lít

=>Vkk=6,72\5=33,6l

PTHH: \(C+O_2\underrightarrow{t^o}CO_2\)

a) Ta có: \(n_C=\dfrac{3,6}{12}=0,3\left(mol\right)=n_{CO_2}\) 

\(\Rightarrow V_{CO_2}=0,3\cdot22,4=6,72\left(l\right)\)

b) Theo PTHH: \(n_{O_2}=n_C=0,3mol\) 

\(\Rightarrow V_{O_2}=6,72\left(l\right)\) \(\Rightarrow V_{kk}=6,72\cdot5=33,6\left(l\right)\)

Ta có: \(n_S=\dfrac{6,4}{32}=0,2\left(mol\right)\)

a. PTHH: S + O₂ ---t^o---> SO₂

Theo PT: \(n_{SO_2}=n_S=0,2\left(mol\right)\)

=> \(m_{SO_2}=0,2.64=12,8\left(g\right)\)

b. Theo PT: \(n_{O_2}=n_S=0,2\left(mol\right)\)

=> \(m_{O_2}=0,2.32=6,4\left(g\right)\)

a)S+O2-------->SO2

b)n S=6,4/32=0,2(mol)

Theo pthh

n SO2 =n S=0,2(mol)

V SO2=0,2.22,4=4,48(mol)

TK

Từ C₂H₄O₂ ta có: M = 60 g/mol; m_C = 2 x 12 = 24 g; m_H = 4 x 1 = 4 g;

M_O = 2 x 16 = 32 g.

%C = (24 : 60) x 100% = 40%; %H = (4 : 60) x 100% = 6,67%;

%O = 100% - 40% - 6,67% = 53,33%.

\(a,n_{CO_2}=\dfrac{5,6}{22,4}=0,25\left(mol\right)\)

\(n_{CO_2}=0,5.44=11\left(g\right)\)

\(b,n_{NH_3}=\dfrac{10,08}{22,4}=0,45\left(mol\right)\)

\(n_{NH_3}=0,45,17=7,65\left(g\right)\)

\(c,n_{NO_2}=\dfrac{16,8}{22,4}=0,75\left(mol\right)\)

\(n_{NO_2}=0,75.46=34,5\left(g\right)\)

\(a,n_{CO_2}=\dfrac{5,6}{22,4}=0,25\left(mol\right)\\ m_{CO_2}=0,25\cdot44=11\left(g\right)\\ b,n_{NH_3}=\dfrac{10,08}{22,4}=0,45\left(mol\right)\\ m_{NH_3}=0,45\cdot17=7,65\left(g\right)\\ c,n_{NO_2}=\dfrac{16,8}{22,4}=0,75\left(mol\right)\\ m_{NO_2}=0,75\cdot46=34,5\left(g\right)\)

Ta có: \(m_C=1,5.1000.90\%=1350\left(g\right)\)

\(n_C=\dfrac{1350}{12}=112,5\left(mol\right)\)

PT: \(C+O_2\underrightarrow{t^o}CO_2\)

Theo PT: \(n_{O_2}=n_C=112,5\left(mol\right)\)

\(\Rightarrow V_{O_2}=112,5.22,4=2520\left(l\right)\)

\(V_{kk}=V_{O_2}.5=12600\left(l\right)\)

16 gam khí oxi: n = m : M = 16 : 32 = 0,5 (mol)

V = n.22,4 = 0,5.22,4 = 11,2 (lít)