Alex T. ZhaoChul Ou (partner)Greg KerrIB Chemistry HL 1BJanuary 8, 2013

Solubility Rules

Aim: To test the solubility of certain nitrates, chlorides, sulfates, carbonates, bromides, iodides, and hydroxides by mixing the solutions of the sodium salts of above-mentioned anions with solutions containing different cations.

Data Collection:

Solutions to be tested

Cation Present

NaNO3 NaCl Na2SO4 Na2CO3 NaBr NaI NaOHAnion Added

NO3- Cl- SO42- CO3

2- Br- I- OH-

KNO3 K+

AgNO3 Ag+ white white yellowpale yellow

yellow brown

Pb(NO3)2 Pb2+ white white white white yellow white

NH4NO3 NH4+

MgSO4 Mg2+ white white

FeSO4 Fe2+ green green

CuSO4 Cu2+ green blue

ZnSO4 Zn2+ white white

Cr2(SO4)3 Cr3+ green

Al2(SO4)3 Al3+ white

BaCl2 Ba2+ white white

CaCl2 Ca2+ white white white

FeCl3 Fe3+ brown brown

(cont. next page)

IB Chemistry HL Lab 7 January 8, 2013

Net Ionic Equations

IB Chemistry HL Lab 7 January 8, 2013