\(n_S=\dfrac{3.2}{32}=0.1\left(mol\right)\)

\(n_{O_2}=\dfrac{1.12}{22.4}=0.05\left(mol\right)\)

\(S+O_2\underrightarrow{t^0}SO_2\)

\(0.05.0.05...0.05\)

\(\Rightarrow Sdư\)

\(V_{SO_2}=0.05\cdot22.4=1.12\left(l\right)\)

\(b.\)

\(S+O_2\underrightarrow{t^0}SO_2\)

\(0.1..0.1\)

\(V_{kk}=5V_{O_2}=5\cdot0.1\cdot22.4=11.2\left(l\right)\)

a, PT: \(S+O_2\underrightarrow{t^o}SO_2\)

Ta có: \(n_S=\dfrac{3,2}{32}=0,1\left(mol\right)\)

\(n_{O_2}=\dfrac{1,12}{22,4}=0,05\left(mol\right)\)

Xét tỉ lệ: \(\dfrac{0,1}{1}>\dfrac{0,05}{1}\), ta được S dư.

Theo PT: \(n_{SO_2}=n_{O_2}=0,05\left(mol\right)\) \(\Rightarrow V_{SO_2}=0,05.22,4=1,12\left(l\right)\)

b, Theo PT: \(n_{O_2}=n_S=0,1\left(mol\right)\)

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

\(\Rightarrow V_{kk}=2,24.5=11,2\left(l\right)\)

n_S = 9,6/32 = 0,3 mol

S + O₂ ---t^o----> SO₂

0,3__0,3__________0,3

m_SO2 = 0,3 . 64 = 19,2 (g)

V_O2 = 0,3 . 22,4 = 6,72 (l)

V_kk = 6,72 . 5 = 33,6 (l)

Ta có số avogadro : 6.10^23

Khi đó số mol nguyên tử S tham gia phản ứng : \(\frac{1,5.10^{23}}{6.10^{23}}=0,25\left(mol\right)\)

PTHH : \(S+O_2\rightarrow^{t^o}SO_2\)

0,25 0,25

=> nO2 = 0,25 (mol)

=> VO2 (đktc) = 0,25 x 22,4 = 5,6 (l)

b/ nSO2 = nS = 0,25 (mol)

Khối lượng SO2 thu được là :

\(\frac{64.0,25.95}{100}=15,2\left(g\right)\)

\(n_{SO_2}=\dfrac{V_{SO_2\left(ĐKTC\right)}}{22,4}=\dfrac{6,72}{22,4}=0,3\left(mol\right)\)

PTHH: \(S+O_2\underrightarrow{t^o}SO_2\)

...........1.........1........1......

...........0,3......0,3......0,3.....

a. \(m_S=n_S\cdot M_S=0,3\cdot32=9,6\left(g\right)\)

b. \(V_{O_2\left(ĐKTC\right)}=n_{O_2}\cdot22,4=0,3\cdot22,4=6,72\left(l\right)\)

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

\(n_{SO_2}=\dfrac{6.72}{22.4}=0.3\left(mol\right)\)

\(S+O_2\underrightarrow{t^0}SO_2\)

\(0.3..0.3...0.3\)

\(m_S=0.3\cdot32=9.6\left(g\right)\)

\(V_{kk}=5V_{O_2}=5\cdot22.4\cdot0.3=33.6\left(l\right)\)

a/

ta có: \(n_{SO_2}=\dfrac{6.72}{22.4}=0.3\left(mol\right)\)

PTHH

\(S+O_2\underrightarrow{t^o}SO_2\)

1              1

x              0.3

\(=>x=0.3=n_S\)

\(=>m_S=0.3\cdot32=9.6\left(g\right)\)

\(n_{O2}=\dfrac{3,36}{22,4}=0,15\left(mol\right)\)

Pt : \(S+O_2\underrightarrow{t^o}SO_2|\)

      1      1         1

    0,15 0,15     0,15

a) \(n_S=\dfrac{0,15.1}{1}=0,15\left(mol\right)\)

⇒ \(m_S=0,15.32=4,8\left(g\right)\)

b) \(n_{SO2}=\dfrac{0,15.1}{1}=0,15\left(mol\right)\)

\(V_{SO2\left(dktc\right)}=0,15.22,4=3,36\left(l\right)\)

 Chúc bạn học tốt

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)

a) \(n_S=\dfrac{16}{32}=0,5\left(mol\right)\)

PTHH: S + O₂ --t^o--> SO₂

          0,5->0,5------>0,5

=> m_SO2 = 0,5.64 = 32 (g)

b) V_O2 = 0,5.22,4 = 11,2 (l)

=> V_kk = 11,2.5 = 56 (l)

c) 

\(n_{O_2}=\dfrac{24}{32}=0,75\left(mol\right)\)

Xét tỉ lệ: \(\dfrac{0,5}{1}< \dfrac{0,75}{1}\)

=> S hết, O₂ dư

PTHH: S + O₂ --t^o--> SO₂

          0,5->0,5------>0,5

=> n_O2(dư) = 0,75 - 0,5 = 0,25 (mol)

bn check lại giúp mình ý b) nhé