Inorganic lab part 1 exam

term- question, definition- answer

Ca2+ + C2O4(2-) →

CaC2O4(precip)

CaC2O4(precip) +2 H+ →

Ca2+ + H2C2O4

Co2+ + 2 NH3 + 2 H2O →

Co(OH)2(precip) + 2 NH4+

Ca2+ + H2C2O4 + 2 NH3 →

CaC2O4(precip) + 2 NH4+

Co(OH)2(precip) + 4 NH3 + 2 NH4+ →

[Co(NH3)6]2+ + 2 H2O

[Co(NH3)6]2+ + 6 H+ →

Co2+ + 6 NH4+(gas)

Co2+ + 4 Cl- →

[CoCl4]2-

Ca2+ + CO3(2-) →

CaCO3(precip)

CaCO3(precip) + 2 CH3COOH →

Ca2+ + 2 CH3COO- + CO2(gas) + H2O

Hg2+ + 2 I- →

HgI2(precip)

HgI2(precip) + 2 I- →

[HgI4]2-

NH4+ + OH- →

NH3(gas) + H2O

Zn2+ + 2 NH3 + 2 H2O →

Zn(OH)2(precip) + 2 NH4+

Zn(OH)2(precip) + 2 NH3 + NH4+ →

[Zn(NH3)4]2+ + 2 H2O

[Zn(NH3)4]2+ + S2- → (+heat)

Zn2+ + H2S(gas)

H2S(gas) + [Pb(OH)4]2- →

PbS(precip) + 4 H2O + 2 OH-

Cu2+ + H2S →

CuS(precip) + 2 H+

3 CuS(precip) + 8 NO3- + 8 H+ →

3 Cu2+ + 3 SO4(2-) + 8 NO(gas) + 4 H2O

NO3- + 4 Zn(precip, Devarda’s alloy) + 7 OH- + 6 H20 →

NH3(gas) + 4 [Zn(OH)4]2-

Cr3+ + 6 OH- →

[Cr(OH)6]3-

2 [Cr(OH6)]3- + 3 H2O2 →

2 CrO4(2-) + 8 H2O + 2 OH-

2 MnO4- + 6 H+ + 5 H2O2 →

2 Mn2+ + 5 O2 + 8 H2O

HPO4(2-) + Mg2+ + NH3 →

MgNH4PO4(precip)

MgNH4PO4(precip) + 3 Ag+ →

Ag3PO4(precip) + Mg2+ + NH4+

Ag3PO4(precip) + 3 Cl- + 3 H+ →

3 AgCl(precip) + H3PO4

AgCl(precip) + 2 NH3 →

[Ag(NH3)2]+ + Cl-

[Ag(NH3)2]+ + I- →

AgI(precip) + 2 NH3(gas)

when heated, AgI turns from ____ to _____

white, yellow

AgI(precip) + 2 S2O3(2-) →

[Ag(S2O3)2]3- + I-

2 [Ag(S2O3)2]3- → (+heat)

2 Ag(precip) + S4O6(2-) + 2 S2O3(2-)

2 I- + Cl2 →

I2 + 2 Cl-

2 I2 + 5 Cl2 + 6 H2O →

2 IO3- + 10 Cl- + 12 H+

2 IO3- + 10 S2O3(2-) + 12 H+ →

I2 + 5 S4O6(2-) + 6 H2O

I2 + 2 S2O3(2-) →

2 I- + S4O6(2-)

12 Fe2+ + 2 H3PO4 + 2 CrO7(2-) + 4 H+ + H2O →

12 [FeHPO4]+ + 4 Cr3+

Sn2+ + 2 Fe3+ →

Sn4+ + 2 Fe2+

Sn2+ + 2 Hg2+ + 2 Cl- →

Sn4+ + Hg2Cl2(precip)

6 Fe2+ + 9 PO4(3-) + Cr2O7(2-) + 23 H+ →

3 Fe2(HPO4)3 + 2 Cr3+ + 7 H2O

silver ion precipitates chloride, bromide and iodide in _____ solution

acidic

silver chloride precipitates as a ______

colloid

UV light ______ silver ions to ______

reduces, metallic silver

sodium hydroxide in glass container must be _____ daily

standardized

ammonium ions are released as ammonia when boiled with _______

hydroxide ions

in boric acid solution ammonia forms ____ and _____

ammonium, dihydrogen borate