Anorganische Chemie

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Flashcards	17
Language	Deutsch
Category	Chemistry
Level	University
Created / Updated	29.06.2011 / 21.05.2016
Weblink	https://card2brain.ch/box/anorganische_chemie
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Aufschluss

ZrO2

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ZrO2 +Na2CO3 -> Na2ZrO3 + CO2

Na2ZrO3 +2H2O -> ZrO(OH)2 +2Na+ +2OH-

Aufschluss Zr3(PO4)4

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Zr3(PO4)4 + 9Na2CO3 -> 3Na2ZrO3 + 4Na3PO4 + 9CO2

Na2ZrO3 +2H2O -> ZrO(OH)2 +2Na+ +2OH-

Aufschluss TiO2

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TiO2 +NaCO3 -> Na2TiO3 +CO2

Na2TiO3 +2H2O -> TiO(OH)2 +2Na+ +2OH-

Aufschluss Cr2O3

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2Cr2O3 +4Na2CO3 + 3O2 -> 4Na2CrO4 +4CO2

Na2CrO4 -> Cr2O4(2-) + 2Na+

Cr2O4(2-) + 4H2O -> Cr + 8OH-

Aufschluss Al2O3

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Al2O3 +3Na2CO3 -> 2Na3AlO3 +3CO2

Na3AlO3 +3H2O -> [Al(OH)6]3- +3Na+

Aufschluss SrSO4

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SrSO4 +Na2CO3 -> SrCO3 +Na2SO4

(löslich in Essigsäure)

Gruppe2:

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TAA-Fällung:

CH3CSNH2 +2H2O -> H2S + CH3COO- + NH4(+)

H2S -> S +2H

__________________________________________________

->Bildung von Sulfiden:

HgS, PbS,Bi2S3 , CuS, CdS, As2S3 , Sb2S3, SnS

Gruppe 2a

PbS

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3PbS+2NO3(-) +8H+ -> 3Pb2+ + 3S + 2NO + 4H2O

Gruppe 2a Bi2S3

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3Bi2S3 +2NO3(-) + 8H+ -> 2Bi3+ + 3S + 2NO + 4H2O

Gruppe 2a CuS

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3CuS+2NO3(-) +8H+ -> 3Cu2+ + 3S + 2NO + 4H2O

Gruppe 2a CdS

3CdS+2NO3(-) +8H+ -> 3Cd2+ + 3S + 2NO + 4H2O

Gruppe 2a HgS

3HgS+2NO3(-) + 6Cl- +8H -> 3HgCl2 + 3S + 2NO + 4H2O

HgCl2 + Sn(2+) + 4Cl(-) -> Hg? + SnCl6(2-)

Gruppe 2a Pb(2+)

2Pb(2+) +Cr2O7(2-) +H2O+2H3COO(-) -> 2PbCrO4 ?+2H3COOH

Guppe 2a Bi(3+)

Bi(3+) +3NH3 +3H2O -> Bi(OH)3 ?+3NH3

2Bi(OH)3 +3[Sn(OH)3] +3OH(-) -> 2Bi?+3[Sn(OH)6](2-)

Gruppe 2a Cu(2+)

Cu(2+) +4NH3 -> [Cu(NH3)4](2+)

Gruppe 2a Cd(2+)

Cu(2+) +6NH3 -> [Cu(NH3)6](2+)

[Cu(NH3)6](2+) + H2S -> CdS?+2NH3 +4NH4(+)

Gruppe 2b As2S3

As2S3 +6OH(-) -> As2S3 +3H2O

AsS2O(3-) +AsSO2(3-) +3H2O

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Anorganische Chemie

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