Physical: Solubiltiy Flashcards
A compound that dissolves in water is termed as
Soluble
A compound that does not dissolve in water is termed as
Insoluble
Definition of solubility, key words
The solubility of a solid in a solvent is the maximum mass that will dissolve in a given volume (or mass) of the solvent, or a particular temp., in the presence of excess dissolved solid to make the solution saturated
Chalk and limestone have a major constituent which can only dissolve to a small degree, what is it?
Calcium carbonate
What happens to the aqueous ions formed from Calcium carbonate
They are in equilibrium with the undissolved solid
Examples of calcium carbonate precipitates
Stalactites and Stalagmites
Lithium ion and Sodium ion
Generally soluble, True or False?
True, no exceptions
Potassium and ammonium ions are generally soluble, true or false?
True, no exceptions
Nitrate and acetate ions are generally soluble, true or false
True, no exceptions
Chlorine, bromine and iodine ions are generally soluble, true or False?
True, exception when mixed with Silver, mercury and lead ions
Sulfate is generally soluble, true or False?
True, except when mixed with strontium, barium, lead, silver and calcium ions
Solubility product constant has what unit
(Mol dm^-3)^(p+q)
Definition of molar solubility
The molar solubility (s) gives the number of moles of solute dissolved in 1 dm^3 of a saturated solution.
Definition of common ion effect?
The reduction in solubility of a salt due to the presence in solution of one of the ions from another source
Mg(OH)₂ (s) <> Mg²+ (aq) + 2OH` (aq)
Increasing the concentration of OH` will shift the EQM…
This will … the solubility of the solid
Left
Decrease