Predict Values for: Polar Solute, Polar Solvent

∆H1

∆H_{2}

∆H_{3}

∆H_{soln}

Outcome

Predict Values for: Polar Solute, Polar Solvent

∆H1 - large

∆H_{2 }- large

∆H_{3} - large, negative

∆H_{soln }- small

Outcome - solution forms

Predict Values for: Nonpolar Solute, Polar Solvent

∆H1

∆H2

∆H3

∆Hsoln

Outcome

Predict Values for: Nonpolar Solute, Polar Solvent

∆H1 - small

∆H2 - large

∆H3 - small

∆Hsoln - large, positive

Outcome - no solution forms

Predict Values for: Nonpolar Solute, Nonpolar Solvent

∆H1

∆H2

∆H3

∆Hsoln

Outcome

Predict Values for: Nonolar Solute, Nonolar Solvent

∆H1 - small

∆H2 - small

∆H3 - small

∆Hsoln - small

Outcome - solution forms

Predict Values for: Polar Solute, Nonolar Solvent

∆H1

∆H2

∆H3

∆Hsoln

Outcome

Predict Values for: Polar Solute, Polar Solvent

∆H1 - large

∆H2 - small

∆H3 - small

∆Hsoln - large, positive

Outcome - no solution forms

Pressure has ____ affect on solubilty of solids and liquids.

little

Henry’s Law equation:

C=kP

C=concentration of dissolved gas

k=constant

P=partial pressure of gas solute above the solution

Amount of gas dissolved in a solution is ______ proportional to the pressure of gas above the solution.

directly

Solubilty of a gas in solvent typically (increases/decreases) with increasing temperature.

decreases

Define volatile:

tendency of a substance to vaporize.

Nonvolatile solute _______ the vapor pressure of a solvent.

lowers

Raoult’s Law Equation:

P_{soln}=X_{solv}P°_{solv}

P_{soln }= observed vapor pressure of solution

X_{solv }= mol fraction of solvent

P°_{solv }= vapor pressure of pure solvent