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\(\text{a) N2+3H2->2NH3}\)
\(\text{4NH3+5O2->4NO+6H2O}\)
\(\text{2NO+O2->2NO2}\)
\(\text{O2+4NO2+2H2O->4HNO3}\)
b)
nN2=112000/22,4=5000(mol)
=>nHNO3=10000(mol)
hao hụt 15%
=>nHNO3=8500(mol)
\(\Rightarrow\text{mdd HNO3=8500x63/63%=850000(g)=0,85(tấn)}\)
2NH3 + 3CuO → N2 + 3Cu + 3H2O
2Al + 2KOH + 2H2O → 2KAlO2 + 3H2
2AgNO3 → 2Ag + 2NO2 + O2
2Zn(NO3)2 →2ZnO + O2 + 4NO2
4Fe(NO3)3 → 2Fe2O3 + 12NO2 + 3O2
4Zn + 5H2SO4 → 4ZnSO4 + 4H2O + H2S
3Mg + 4H2SO4 → 3MgSO4 + S + 4H2O
10Al + 36HNO3 → 10Al(NO3)3 + 3N2 + 18H2O
2NH3 + 3CuO → N2 + 3Cu + 3H2O
2Al + 2KOH + 2H2O → 2KAlO2 + 3H2
2AgNO3 → 2Ag + 2NO2 + O2
2Zn(NO3)2 →2ZnO + O2 + 4NO2
4Fe(NO3)3 → 2Fe2O3 + 12NO2 + 3O2
4Zn + 5H2SO4 → 4ZnSO4 + 4H2O + H2S
3Mg + 4H2SO4 → 3MgSO4 + S + 4H2O
10Al + 36HNO3 → 10Al(NO3)3 + 3N2 + 18H2O
Sao bài cân bằng nào cx khó thế này ?.-.
nH2SO4=2/98=1/49 (mol)
\(S\rightarrow SO_2\rightarrow SO_3\rightarrow H_2SO_4\)
\(\frac{1}{49}\) \(\frac{1}{49}\)
mS=\(\frac{1}{49}.32=\frac{32}{49}\)
m S (thực có) = \(\frac{32}{49}.\frac{100}{80}=\frac{40}{49}\)
mquặng S=\(\frac{40}{49}.\frac{100}{60}=1,36\left(tấn\right)\)
a. 6NH3 + 5O3 --> 6NO + 9H2O
b. 2S + HNO3 -to-> 2NO + H2SO4
c. 4NO2 + O2 + 2H2O --> 4HNO3
d. FeCl3 + 3AgNO3 --> Fe(NO3)3 + 3AgCl
e. 3NO2 + H2O -to-> 2HNO3 + NO
f. 3Ba(NO3)2 + Al2(SO4)3 --> 3BaSO4 + 2Al(NO3)3
a. 6NH3 + 5O3 \(\rightarrow\) 6NO + 9H2O
b. 2S + HNO3 \(\underrightarrow{to}\) 2NO + H2SO4
c. 4NO2 + O2 + 2H2O \(\rightarrow\) 4HNO3
d. FeCl3 + 3AgNO3 \(\rightarrow\) Fe(NO3)3 + 3AgCl
e. 3NO2 + H2O \(\underrightarrow{to}\) 2HNO3 + NO
f. 3Ba(NO3)2 + Al2(SO4)3 \(\rightarrow\) 3BaSO4 + 2Al(NO3)3
a) \(N_2+O_2\rightarrow2NO\)
\(\begin{matrix}N^0\rightarrow N^{+2}+2e\\O^0+2e\rightarrow O^{-2}\end{matrix}|\begin{matrix}\times1\\\times1\end{matrix}\)
b) \(C_2H_5OH+3O_2\rightarrow2CO_2+3H_2O\)
\(\begin{matrix}C^{-2}\rightarrow C^{+4}+6e\\O^0+2e\rightarrow O^{-2}\end{matrix}|\begin{matrix}\times1\\\times3\end{matrix}\)
c) \(CH_4+2O_2\rightarrow CO_2+2H_2O\)
\(\begin{matrix}C^{-4}\rightarrow C^{+4}+8e\\O^0+2e\rightarrow O^{-2}\end{matrix}|\begin{matrix}\times1\\\times4\end{matrix}\)
d) \(2H_2S+3O_2\rightarrow2H_2O+2SO_2\)
\(\begin{matrix}S^{-2}\rightarrow S^{+4}+6e\\O^0+2e\rightarrow O^{-2}\end{matrix}|\begin{matrix}\times1\\\times3\end{matrix}\)
e) \(4NH_3+3O_2\rightarrow2N_2+6H_2O\)
\(\begin{matrix}N^{-3}\rightarrow N^0+3e\\O^0+2e\rightarrow O^{-2}\end{matrix}|\begin{matrix}\times2\\\times3\end{matrix}\)
a)N2+O2->2NO
b)C2H5OH+3O2->2CO2+3H2O
c)CH4+2O2->CO2+2H2O
d)H2S+3/2O2->H2O+SO2 / 2H2S+3O2->2H2O+2SO2
e)2NH3+3/2O2->N2+3H2O / 4NH3+3O2->2N2+6H2O
CHÚC BN HỌC TỐT :))))
a, 4Zn + 10HNO3 = 4Zn(NO3)2 + N2O + 5H2O
4x Zn - 2e -> Zn2+
1x 2N+5 + 8e -> 2N+1
b, 23Zn + 56HNO3 = 23Zn(NO3)2 + 2NO + 4N2 + 28H2O
23a x Zn - 2e -> Zn2+
2 x 5aN+5 + 23a e -> aN+2 + 4aN+0
Tối giản hệ số a = 1
c,d làm tương tự
e, (5-x)Zn+(12-2x) HNO3→(5-x)Zn(NO3)2+ N2Ox + (6-x) H2O
(5-x) x Zn - 2e -> Zn2+
1 x 2N+5 + (10-2x)e -> 2N+x
a, 4Zn + 10HNO3 = 4Zn(NO3)2 + N2O + 5H2O
4x Zn - 2e -> Zn2+
1x 2N+5 + 8e -> 2N+1
b, 23Zn + 56HNO3 = 23Zn(NO3)2 + 2NO + 4N2 + 28H2O
23a x Zn - 2e -> Zn2+
2 x 5aN+5 + 23a e -> aN+2 + 4aN+0
Tối giản hệ số a = 1
c,d làm tương tự
e, (5-x)Zn+(12-2x) HNO3→(5-x)Zn(NO3)2+ N2Ox + (6-x) H2O
(5-x) x Zn - 2e -> Zn2+
1 x 2N+5 + (10-2x)e -> 2N+x
Đáp án C.
FeS2→ 2H2SO4
0,08 ← 0,16 (mol)
H% = 0,08.100/0,1= 80%
\(\text{Ta có 2 N2 ----> 1 HNO3}\)
..............56.................63
................x.......................1000
\(\Rightarrow\text{x=(1000.56)/63=888,889 kg}\)
\(\Rightarrow\text{m N2 thực tế =888,889.100/75=1185,185 Kg}\)
\(\Rightarrow\text{V N2= 1185,185 .22,4/28=948,148 m^3 }\)