Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
1, Na2O+H2O---> 2NaOH
2, 2AL(OH)3---> AL2O3+3H2O
3, 2AL+6HCl--->2ALCL3+3H2
4, 2FE(OH)3+3H2SO4---> FE2(SO4)3+3H2O
5, FE2O3+6HCL---> 2FECL3+3H2O
6,Zn+ H2SO4--> ZnSO4+H2
7, 3KCLO3---> 3KCL+3O2
8, CACO3+2HCL---> CACL2+CO2+H2O
9, P2O5+3H2O---> 2H3PO4
10, AL2O3+3H2SO4---> AL2(SO4)3+3H2O
11, Mg+2HCL--->MGCL2+H2
12, 2NA+O2--->2NA2O
13 FECL2+2NAOH--->FE(OH)2+2NACL
14 4K+O2---> 2K2O
15, CAO+2HCL---> CACL2+H2O
\(n_{CO_2}=\dfrac{13,44}{22,4}=0,6\left(mol\right)\\ m_{CO_2}=44.0,6=26,4\left(g\right)\)
Thành phần | OH (I) | SO4 (II) | Cl (I) | NO3 (I) | O(II) | PO4(III) |
Na(I) | NaOH | Na2SO4 | NaCl | NaNO3 | Na2O | Na3PO4 |
Al(III) | Al(OH)3 | Al2(SO4)3 | AlCl3 | Al(NO3)3 | Al2O3 | AlPO4 |
Mg(II) | Mg(OH)2 | MgSO4 | MgCl2 | Mg(NO3)2 | MgO | Mg3(PO4)2 |
Fe(III) | Fe(OH)3 | Fe2(SO4)3 | FeCl3 | Fe(NO3)3 | Fe2O3 | FePO4 |
\(m_{CaO}=11,2\left(kg\right)=11200\left(g\right)\)
`=>` \(n_{CaO}=\dfrac{11200}{56}=200\left(mol\right)\)
PTHH: \(CaCO_3\xrightarrow[]{t^o}CaO+CO_2\)
200<-------200
=> \(m_{đá.vôi}=\dfrac{200.100}{100\%-20\%}=25000\left(g\right)=25\left(kg\right)\)
\(n_{O_2}=\dfrac{2,24}{22,4}=0,1\left(mol\right)\)
PTHH: \(CH_4+2O_2\xrightarrow[]{t^o}CO_2+2H_2O\)
0,05<--0,1
=> \(V=\dfrac{0,05.22,4}{95\%}=\dfrac{112}{95}\left(l\right)\)
\(N_{Fe}=0,25\cdot6\cdot10^{23}=1,5\cdot10^{23}\)
\(N_{Al}=1,5\cdot6\cdot10^{23}=9\cdot10^{23}\\ N_{H_2}=0,5\cdot6\cdot10^{23}=3\cdot10^{23}\\ N_{NaCl}=0,25\cdot6\cdot10^{23}=1,5\cdot10^{23}\\ n_{H_2O}=\dfrac{1,2\cdot10^{22}}{6\cdot10^{23}}=0,02\left(mol\right)\\ n_{Mg}=\dfrac{0,72\cdot10^{23}}{6\cdot10^{23}}=0,12\left(mol\right)\\ n_{CO_2}=\dfrac{3\cdot10^{22}}{6\cdot10^{23}}=0,05\left(mol\right)\)
\(n_{Fe_2O_3}=\dfrac{80}{56\cdot2+16\cdot3}=0,5\left(mol\right)\\ n_{CaCO_3}=\dfrac{10}{40+12+16\cdot3}=0,1\left(mol\right)\\ n_{Na_2SO_4}=\dfrac{56,8}{23\cdot2+32+16\cdot4}=0,4\left(mol\right)\\ n_{K_2SO_4}=\dfrac{43,5}{39\cdot2+32+16\cdot4}=0,25\left(mol\right)\\ n_{Fe}=\dfrac{28}{56}=0,5\left(mol\right)\\ n_{Cu}=\dfrac{12,8}{64}=0,2\left(mol\right)\)
\(m_{CuO}=0,25\cdot\left(64+16\right)=20\left(g\right)\\ m_{BaCl_2}=0,25\cdot\left(137+35,5\cdot2\right)=52\left(g\right)\\ m_{NaCl}=0,05\cdot\left(23+35,5\right)=2,925\left(g\right)\\ n_{H_2SO_4}=0,15\cdot\left(2+32+16\cdot4\right)=14,7\left(g\right)\)
thank you