All the calculation formulas of senior one chemistry Some important ones will do Calculation formula

All the calculation formulas of senior one chemistry Some important ones will do Calculation formula

Summary of compulsory knowledge of chemistry in senior one
Summary of chemistry knowledge in senior one 2007-01-29 19:23 part I
1. Determination of sulfate ion: BaCl2 + Na2SO4 = BaSO4 ↓ + 2nacl
2. Test of carbonate ion: CaCl2 + Na2CO3 = CaCO3 ↓ + 2nacl
3. Carbonic acid
Sodium reacts with hydrochloric acid: Na2CO3 + 2HCl = 2nacl + H2O + CO2 ↑
4. Reduction of CuO by charcoal: 2CuO + C, high temperature 2Cu + CO 2 ↑
5. Iron and sulfuric acid
Copper solution reaction: Fe + CuSO4 = FeSO4 + Cu
6. Reaction of calcium chloride with sodium carbonate solution
：cacl2 + na2co3 = caco3↓+ 2nacl
7. Combustion of sodium in air: 2Na + O2 △ Na 2O 2
Sodium reacts with oxygen: 4na + O2 = 2Na
2o
8. Reaction of sodium peroxide with water: 2na2o2 + 2H2O = 4naoh + O2 ↑
9. Peroxygenation
The reaction of sodium chloride with carbon dioxide: 2na2o2 + 2co2 = 2na2co3 + O2
10. Sodium reacts with water
It should be: 2Na + 2H2O = 2naoh + H2 ↑
11. Reaction of iron with water vapor: 3Fe + 4H2O（
g) = f3o4 + 4h2↑
12. Reaction of aluminum with sodium hydroxide solution: 2Al + 2naoh + 2h2
o = 2naalo2 + 3h2↑
13. Reaction of Cao with water: Cao + H2O = Ca (OH) 2
14. Reaction of ferric oxide with hydrochloric acid: Fe2O3 + 6hcl = 2fecl3 + 3H2O
15. Reaction of alumina with hydrochloric acid: Al 2O 3 + 6hcl = 2AlCl 3 + 3H 2O
16. Alumina
Reaction with sodium hydroxide solution: Al 2O 3 + 2naoh = 2naalo 2 + H 2O
17. Ferric chloride
Reaction with NaOH solution: FeCl3 + 3naoh = Fe (OH) 3 ↓ + 3nacl
18. Sulfuric acid
FeSO4 + 2naoh = Fe (OH) 2 ↓ + Na2SO4
nineteen
Fe (OH) 2 + 2H2O + O2 = 4Fe (OH) 3
20. Fe (OH) 3 △ Fe 2O 3 + 3H 2O
21. Laboratory
Preparation of aluminum hydroxide: Al2 (SO4) 3 + 6nh3 / * H2O = 2Al (OH) 3 ↓ + 3 (NH3)
2so4
22. Reaction of aluminum hydroxide with hydrochloric acid: Al (OH) 3 + 3hcl = AlCl 3 + 3H 2O
two
3. Reaction of aluminum hydroxide with sodium hydroxide solution: Al (OH) 3 + NaOH = NaAlO2 + 2H2O
24. Heating of aluminum hydroxide: 2Al (OH) 3 △ Al 2O 3 + 3H2O
25. Ferric chloride
Reaction of solution with iron powder: 2fecl3 + Fe = 3fecl2
26. Add chlorine into ferrous chloride: 2fecl2 + Cl2 = 2fecl3
27、
Reaction of silica with hydrofluoric acid: SiO2 + 4HF = SiF4 + 2H2O
Silicon and hydrogen
Fluoric acid reaction: Si + 4HF = SiF4 + 2h2 ↑
High temperature reaction of silica and Cao
It should be SiO2 + Cao high temperature CaSiO3
29. Reaction of silica with sodium hydroxide solution: Si
o2 + 2naoh = na2sio3 + h2o
30. Put carbon dioxide: Na into sodium silicate solution
2sio3 + co2 + h2o = na2co3 + h2sio3↓
31. Reaction of sodium silicate with hydrochloric acid: n
a2sio3 + 2hcl = 2nacl + h2sio3↓
32. Reaction of chlorine with iron: 2Fe+
3cl2 ignites 2fecl3
33. Chlorine reacts with copper: Cu + Cl2 ignites CuCl2
34. Chlorine reacts with sodium metal: 2Na + Cl2 ignites 2nacl
35. Chlorine reacts with water
cl2 + h2o = hcl + hclo
36. Hypochlorous acid illumination is divided into 2 hours clo and 2 hours CL+
o2↑
37. Chlorine reacts with sodium hydroxide solution: Cl2 + 2naoh = NaCl + NaClO+
h2o
38. Chlorine reacts with hydrated lime: 2Cl2 + 2ca (OH) 2 = CaCl2 + Ca (CLO) 2
+ 2h2o
39. Hydrochloric acid reacts with silver nitrate solution: HCl + AgNO3 = AgCl ↓ + HNO3
40. Long term exposure of bleaching powder in air: Ca (CLO) 2 + H2O + CO2 = CaCO 3 ↓+
2hclo
41. Reaction of sulfur dioxide with water: SO 2 + H 2O ≈ H 2SO 3
42. Nitrogen and oxygen
Gas reaction under discharge: N2 + O2 discharge 2No
No reacts with oxygen: 2No
+ o2 = 2no2
44. Nitrogen dioxide reacts with water: 3no2 + H2O = 2hno3 + No
forty-five
The reaction of sulfur dioxide with oxygen in the presence of catalyst: 2so2 + O2 catalyst 2so3
four
6. Reaction of sulfur trioxide with water: so 3 + H 2O = H 2SO 4
47. Reaction of concentrated sulfuric acid with copper: Cu
+2h2so4 (concentrated) △ CuSO4 + 2H2O + SO2 ↑
48. Reaction of concentrated sulfuric acid with charcoal: C
+2h2so4 (concentrated) △ CO2 ↑ + 2so2 ↑ + 2H2O
49. Reaction of concentrated nitric acid with copper: Cu
+4hno3 (concentrated) = Cu (NO3) 2 + 2H2O + 2no2 ↑
Reaction of dilute nitric acid with copper: 3
Cu + 8hno 3 (dilute) △ 3cu (NO 3) 2 + 4H 2O + 2No ↑
51. Ammonia water is divided into NH3 / * H2O △ NH3 ↑ + H2O when heated
52. Reaction of ammonia with hydrogen chloride: NH3 + HCl = NH4Cl
NH4Cl △ NH3 ↑ + HCl
54. NH4HCO3 △ NH3 ↑ + H2O ↑ + CO2 ↑
five
5. Reaction of ammonium nitrate with sodium hydroxide: NH4NO3 + NaOH △ NH3 ↑ + NaNO3 + H2O
56. Preparation of ammonia in laboratory: 2nh4cl + Ca (OH) 2 △ CaCl2 + 2H2O + 2nh3
↑
Reaction of chlorine with hydrogen: Cl2 + H2 ignites 2HCl
58. Ammonium sulfate and hydrogen oxidation
Sodium reaction: (NH4) 2SO4 + 2naoh △ 2nh3 ↑ + Na2SO4 + 2H2O
59、so2
+ cao = caso3
60、so2 + 2naoh = na2so3 + h2o
61、so2 + ca(o
h)2 = caso3↓ + h2o
62、so2 + cl2 + 2h2o = 2hcl + h2so4
63、
so2 + 2h2s = 3s + 2h2o
Recovery of 64, no and NO2: NO2 + NO + 2naoh=
2nano2 + h2o
65、si + 2f2 = sif4
66、si + 2naoh + h2o = nasi
o3 +2h2↑
67. Laboratory preparation of silicon: preparation of crude silicon: SiO2 + 2C high temperature
Electric furnace Si + 2CO
(quartz sand) (coke)
）(crude silicon)
Transformation of coarse silicon to pure silicon: Si (coarse) + 2Cl2 △ SiCl4
SiCl4 + 2h2 high temperature Si (pure) + 4hcl
Nonmetallic elements (F2, Cl2, O2, s, N2, P, C, SI)
1. Oxidizability
f2 + h2 === 2hf
F2 + Xe (excess) = = = Xef2
2F2 (excess) + Xe = = xef4
NF2 + 2m = = 2mfn (for most metals)
2f2 +2h2o===4hf+o2
2f2 +2naoh===2naf+of2 +h2o
f2 +2nacl===2naf+cl2
f2 +2nabr===2naf+br2
f2+2nai ===2naf+i2
F2 + Cl2 (equal volume) = = 2clf
3f2 (excess) + Cl2 = = 2clf3
7f2 (excess) + I2 = = = 2if7
cl2 +h2 ===2hcl
3cl2 +2p===2pcl3
cl2 +pcl3 ===pcl5
cl2 +2na===2nacl
3cl2 +2fe===2fecl3
cl2 +2fecl2 ===2fecl3
cl2+cu===cucl2
2cl2+2nabr===2nacl+br2
cl2 +2nai ===2nacl+i2
5cl2+i2+6h2o===2hio3+10hcl
cl2 +na2s===2nacl+s
cl2 +h2s===2hcl+s
cl2+so2 +2h2o===h2so4 +2hcl
cl2 +h2o2 ===2hcl+o2
2o2 +3fe===fe3o4
o2+k===ko2
s+h2===h2s
2s+c===cs2
s+fe===fes
s+2cu===cu2s
3s+2al===al2s3
s+zn===zns
n2+3h2===2nh3
n2+3mg===mg3n2
n2+3ca===ca3n2
n2+3ba===ba3n2
n2+6na===2na3n
n2+6k===2k3n
n2+6rb===2rb3n
p2+6h2===4ph3
p+3na===na3p
2p+3zn===zn3p2
2. Reducibility
s+o2===so2
s+o2===so2
S + 6hno3 (concentrated) = = H2SO4 + 6no2 + 2H2O
3S + 4 HNO3 (dilute) = = 3so2 + 4NO + 2H2O
n2+o2===2no
4P + 5o2 = = p4o10 (often written as P2O5)
2p + 3x2 = = 2px3 (x denotes F2, Cl2, Br2)
px3+x2===px5
P4 + 20hno3 (concentrated) = = 4h3po4 + 20no2 + 4H2O
c+2f2===cf4
c+2cl2===ccl4
2C + O2 (small amount) = = 2CO
C + O2 (sufficient) = = CO2
c+co2===2co
C + H2O = = CO + H2 (to generate water gas)
2C + SiO2 = = Si + 2CO
Si (coarse) + 2Cl = = SiCl4
(SiCl4 + 2h2 = = Si (pure) + 4hcl)
Si (powder) + O2 = = SiO2
Si + C = = SiC (emery)
si+2naoh+h2o===na2sio3+2h2
3. Disproportionation
cl2+h2o===hcl+hclo
(add acid to inhibit disproportionation, add alkali or light to promote disproportionation)
cl2+2naoh===nacl+naclo+h2o
2cl2+2ca（oh）2===cacl2+ca（clo）2+2h2o
3cl2 + 6koh (hot, concentrated) = = 5kcl + KClO3 + 3H2O
3s+6naoh===2na2s+na2so3+3h2o
4P + 3koh (concentrated) + 3H2O = = PH3 + 3kh2po2
11p+15cuso4+24h2o===5cu3p+6h3po4+15h2so4
3c+cao===cac2+co
3c+sio2===sic+2co
2、 Reducibility of metallic elements (Na, Mg, Al, Fe)
2na+h2===2nah
4na+o2===2na2o
2na2o+o2===2na2o2
2na+o2===na2o2
2Na + S = = Na2S (explosion)
2na+2h2o===2naoh+h2
2na+2nh3===2nanh2+h2
4na + TiCl4 (melt) = = 4nacl + Ti
mg+cl2===mgcl2
mg+br2===mgbr2
2mg+o2===2mgo
mg+s===mgs
mg+2h2o===mg（oh）2+h2
2mg + TiCl4 (melting) = = Ti + 2mgcl2
mg+2rbcl===mgcl2+2rb
2mg+co2===2mgo+c
2mg+sio2===2mgo+si
mg+h2s===mgs+h2
mg+h2so4===mgso4+h2
2al+3cl2===2alcl3
4Al + 3O2 = = 2al2o3 (passivation)
4al(hg)+3o2+2xh2o===2(al2o3.xh2o)+4hg