In: Chemistry
Solubility Product Constants (Ksp at 25 oC) |
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Type | Formula | Ksp |
Solubility Product Constants (Ksp at 25 oC) |
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Type | Formula | Ksp |
Bromides | PbBr2 | 6.3 × 10-6 |
AgBr | 3.3 × 10-13 | |
Carbonates | BaCO3 | 8.1 × 10-9 |
CaCO3 | 3.8 × 10-9 | |
CoCO3 | 8.0 × 10-13 | |
CuCO3 | 2.5 × 10-10 | |
FeCO3 | 3.5 × 10-11 | |
PbCO3 | 1.5 × 10-13 | |
MgCO3 | 4.0 × 10-5 | |
MnCO3 | 1.8 × 10-11 | |
NiCO3 | 6.6 × 10-9 | |
Ag2CO3 | 8.1 × 10-12 | |
ZnCO3 | 1.5 × 10-11 | |
Chlorides | PbCl2 | 1.7 × 10-5 |
AgCl | 1.8 × 10-10 | |
Chromates | BaCrO4 | 2.0 × 10-10 |
CaCrO4 | 7.1 × 10-4 | |
PbCrO4 | 1.8 × 10-14 | |
Ag2CrO4 | 9.0 × 10-12 | |
Cyanides | Ni(CN)2 | 3.0 × 10-23 |
AgCN | 1.2 × 10-16 | |
Zn(CN)2 | 8.0 × 10-12 | |
Fluorides | BaF2 | 1.7 × 10-6 |
CaF2 | 3.9 × 10-11 | |
PbF2 | 3.7 × 10-8 | |
MgF2 | 6.4 × 10-9 | |
Hydroxides | AgOH | 2.0 × 10-8 |
Al(OH)3 | 1.9 × 10-33 | |
Ca(OH)2 | 7.9 × 10-6 | |
Cr(OH)3 | 6.7 × 10-31 | |
Co(OH)2 | 2.5 × 10-16 | |
Cu(OH)2 | 1.6 × 10-19 | |
Fe(OH)2 | 7.9 × 10-15 | |
Fe(OH)3 | 6.3 × 10-38 | |
Pb(OH)2 | 2.8 × 10-16 | |
Mg(OH)2 | 1.5 × 10-11 | |
Mn(OH)2 | 4.6 × 10-14 | |
Ni(OH)2 | 2.8 × 10-16 | |
Zn(OH)2 | 4.5 × 10-17 | |
Iodides | PbI2 | 8.7 × 10-9 |
AgI | 1.5 × 10-16 | |
Oxalates | BaC2O4 | 1.1 × 10-7 |
CaC2O4 | 2.3 × 10-9 | |
MgC2O4 | 8.6 × 10-5 | |
Phosphates | AlPO4 | 1.3 × 10-20 |
Ba3(PO4)2 | 1.3 × 10-29 | |
Ca3(PO4)2 | 1.0 × 10-25 | |
CrPO4 | 2.4 × 10-23 | |
Pb3(PO4)2 | 3.0 × 10-44 | |
Ag3PO4 | 1.3 × 10-20 | |
Zn3(PO4)2 | 9.1 × 10-33 | |
Sulfates | BaSO4 | 1.1 × 10-10 |
CaSO4 | 2.4 × 10-5 | |
PbSO4 | 1.8 × 10-8 | |
Ag2SO4 | 1.7 × 10-5 | |
Sulfides | CaS | 8 × 10-6 |
CoS | 5.9 × 10-21 | |
CuS | 7.9 × 10-37 | |
FeS | 4.9 × 10-18 | |
Fe2S3 | 1.4 × 10-88 | |
PbS | 3.2 × 10-28 | |
MnS | 5.1 × 10-15 | |
NiS | 3.0 × 10-21 | |
Ag2S | 1.0 × 10-49 | |
ZnS | 2.0 × 10-25 | |
Sulfites | BaSO3 | 8.0 × 10-7 |
CaSO3 | 1.3 × 10-8 | |
Ag2SO3 | 1.5 × 10-14 |
For each of the salts on the left, match the salts on the right that can be compared directly, using Ksp values, to estimate solubilities.
(If more than one salt on the right can be directly compared, include all the relevant salts by writing your answer as a string of characters without punctuation, e.g, ABC.)
1. | calcium fluoride | A. Ag3PO4 | ||
2. | chromium(III) hydroxide | B. BaSO3 | ||
C. Zn(OH)2 | ||||
D. PbI2 |
Write the expression for K in terms of the solubility, s, for each
salt, when dissolved in water.
calcium fluoride |
chromium(III) hydroxide |
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Ksp = |
Ksp = |
Note: Multiply out any number and put it first in the Ksp expression. Combine all exponents for s.
Solubility product of the compound of type is given by the
Now , for calcium Fluoride (CaF2)
p=1 and q=2 thus
Now for chromium (III) hydroxide , Cr(OH)3
p=1 and q=3
Thus