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CHEM 1C Shiraiwa > 6B Solubility > Flashcards

6B Solubility Flashcards

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1
Q

Solubility

A

The maximum amount of solute that will dissolve in a given quantity of solvent, at a given temperature

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2
Q

What are some soluble compounds/insoluble

A

Soluble: Sulfates, ammonium compounds, nitrates (and more)
Insoluble: Carbonates, sulfides

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3
Q

What do solublility product contain (ksp)

A

Concentrations of aqueous species only; NO solids

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4
Q

How do you determine if precipitate will form/not form

A
  1. Q<Ksp is Unsaturated so no precipitate will form
  2. Q=Ksp is a Saturated solution
  3. Q>Ksp is a supersaturated solution so precipitate will form
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5
Q

Precipitate

A

Insoluble solid the seperated from solution as a result of a chemical reaction

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6
Q

Spectator ions

A

Ions that are not involved in the net ionic equation but in the ionic equation

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7
Q

What happens if you add NaCl (strong soluble) to AgCl (weak soluble salt)

A

The presence of a common ion suprresses the solubility of AgCl. The presence of a common ion DECREASES the solubility of the salt

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8
Q

Compare the precipitate of a dilute solution and one with a common ion added

A

Dilute solution: only a small amount of precipitate
Common ion added: solubility decreases and more precipitation

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9
Q

AgCL and AgBR are both poorly soluble. IF we add Ag+ to a solution containing Cl- and Br-, what happens if AGBr has a lower Ksp

A

AGBr will precipitate first. AgCl will start precipitating when there is not Br- left

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10
Q

What are good Lewis acids and why

A

Transition metals because they bond to one or more H2O molecules to form a hydrated ion

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11
Q

Define complex ions and ligands

A

Complex ions: Ions that form by combining a cation with several anions or neutral molecule (Ag(H2O)2+
Ligands: The attached ions or molecules IN a complex ion (H2O

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12
Q

What is a complex ion formation reaction. What is the equilibrium constant for this reaction called.

A

The reaction between an ion and ligands to form a complex ion. Kf

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13
Q

The effect of complex ion formation on solubiluty

A

The solubility of an ionic compound that contains a metal cation that forms a complex ion increases in the presence of aquesous ligands

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14
Q

When do metal hydroxides become more soluble and why

A

More soluble in acidic solution by shifting the equilibrium to the right by removing OH-. Some metal hydroxides become more soluble in basic solutions by acting as a lewis base forming a complex ion,

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CHEM 1C Shiraiwa (15 decks)

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