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29 Cards in this Set

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water
high polarity makes it a good solvent
electrolytes
substance that conducts current when dissolved in water
hydration
when an ionic compound is dissociated by water ions
nonelectrolytes
do not dissociate in water and therefore do not conduct electricity
strong electrolyte
dissociates nerly 100% into ions in water
weak electrolyte
substance that ionizes only slightly in water
Aqueous Ionic Reactions: Molecular Equation
Pb(NO3)2 (aq) + 2 NaBr (aq) --> Pb(Br2) (s) + 2 (NaNO3) (aq)
Aqueous Ionic Reactions: Total Ionic Equation (split into ions and include spectator ions)
(Pb)2+ (aq) + 2(NO3)- (aq) + 2Na+ (aq) + 2 Br- (aq) --> (PbBr2) (s) + 2Na+ (aq) + 2(NO3)- (aq)
Aqueous Ionic Reactions: Net Ionic Equation (omit spectator ions)
Pb2+ (aq) + 2Br- (aq) --> PbBr2 (s)
K3PO4 (aq) + Ca(NO3)2 (aq) --> Ca3(PO4)2 (s) + ?? Write the net ionic equation for this reaction
3(Ca)2+ (aq) + 2P(O4)3- (aq) --> Ca3(PO4)2 (s)
precipitate
an insoluble solid formed by a reaction in solution
Solubility Rules: things that are soluble
1. Common compounds of (1) and ammonium ions 2. Common nitrates, acetates, perchlorates 3. Chlorides, Bromides, Iodides, EXCEPT those of Ag+, (Pb)2+, Cu+, and (Hg2)2+ 4. Sulfates, EXCEPT those of (Ca)2+, (Sr)2+, (Ba)2+, Ag+, and (Pb)2+
Solubility Rules: things that are not soluble
1. All metal hydroxides, EXCEPT those of (1) and the larger members of (2) beginning with (Ca)2+ 2. Carbonates and Phosphates, EXCEPT those of (1) and (NH4)+ 3. Sulfides EXCEPT those of (1), (2) and (NH4)+
Double Displacement: metathesis reactions
AX + BY --> AY + BX
Soluble? CuCl2
Soluble
Soluble? Mn(OH)2
Insoluble
Soluble? Na2Cr2O7
Soluble
Soluble? NiSO4
Soluble
Soluble? Ca3(PO4)2
Insoluble
Soluble? K2S
Soluble
Will a precip form? BaCl2 (aq) + Na2SO4 (aq) -->
yes
Will a precip form? CaCl2 (aq) + KC2H3O2 (aq)
no
solution
a homogenous mixture of two or more substances
solute
the solution component present in a smaller amount
solvent
the solution component present in a larger amount
aqueous solution
a solution with water as solvent and gas, liquid, or solid as solute
concentration
amount of solute dissolved in given quantity of solution
molarity (M) =
moles of solute/liters of solution
What volume of 0.246 AgNO3 is required to completely precipitate all of the Cl- in 0.250 L of 0.153 M BaCl2?
0.311 L