Ch 5 Lec 1 - Reactions in Aqueous Solutions Flashcards
the maximum amount of solute is dissolved in the solvent
saturated solution
the solution can hold more solute
unsaturated solution
amount of solute that can dissolve in a given amount of solvent
solubility
solubility varies with blank
temperature
more solute is dissolved than should be possible based on the solubility
supersaturated solution
reaction in which a solid forms in the solution
precipitation reaction
substance that provides ions to the aqueous solution
electrolyte
completely dissociate in solutions
strong electrolytes
example of a strong electrolyte
salts like KBr, NaBr, NaCl
do not completely dissociate
weak electrolytes
example of a weak electrolyte
CH3COOH H+ + CH3COO-
dont dissociate at all
non-electrolytes
example of a non electrolyte
glucose, molecular compounds
chemical equations which describes the dissociation of ionic compounds
dissociation reactions
certain cations and anions combine to produce an insoluble ionic solid (precipitate)
precipitation (ionic) reactions
four solubility rules for soluble compounds
- All group 1 metals are soluble
- All salts with NH4+, NO3-, ClO4-, ClO3-, C2H3CO2- are soluble
- All bromides, iodides, chlorides are soluble EXCEPT when combined with Ag+, Pb2+, Hg2+
- All sulfates are soluble except when combined with Pb2+, Ca2+, Sr2+, Hg2+, Ba
two solubility rules for insoluble compounds
- All metal hydroxides and metal oxides are insoluble EXCEPT those of group 1, Ca2+, Sr2+, and Ba2+
- All salts that contain PO43-, CO32-, SO32-, and S2- are insoluble except with group 1 and NH4+
litmus paper turns blank in acids
red
litmus paper turns blank in bases
blue
methyl red turns blank in acid
red
methyl red turns blank in bases
yellow
substance that releases or produces H+ ions when dissolved in water
arrhenius acid
example of a arrhenius acid
HCl (aq) —> H+(aq) + Cl-(aq)
substance that produces OH- ions when dissolved in water
arrhenius base
example of an arrhenius base
NaOH(aq) —> Na+ + OH-
combination of H+ and OH- produces blank
H2O
B.L. means
Bronsted-Lowry
anything that donates a proton (H+)
B.L. Acid
anything that accepts a proton (H+)
B.L. Base
example of B.L. Acid
HCL + H20 –> H3O+ + Cl-
example of a B.L. Base
NH3 + H2O –> NH4+
H20=acid
NH3=base
molecular compounds, do not completely dissociate in solution
weak acids
example of weak acid
CH3COOH CH3COO- + H+
hydroxides that do not completely dissociate, or produce OH- by reacting with water
weak bases
water can act as an acid or base which is called
amphiprotic
acid and base react to form a salt and water which is called
neutralization