ch12&13 revm

CH 12-13 REVM NAME_________________

USE THIS KEY FOR THE FOLLOWING

A increases b decreases c does not effect

Increasing pressure_______ solubility of a gas in a liquid

Increasing temperature _______ solubility of a solid in a liquid

Increasing temperature_______ solubility of a gas in a liquid

Decreasing surface area _____ the rate of solution

Dissolving a solute ______ the freezing pt of a solution

Dissolving a solute ______ the boiling pt of a solution

Cooling a solvent _______ the rate of solution

As a solution evaporates, its concentration_________

Agitating (stirring) _______ the rate of solution

TRUE OR FALSE

Oil and water are miscible

An unsaturated solution can dissolve more solute

Like dissolves unlike

Alcohol and water are immiscible

Electrolytes conduct electricity when in solution

Precipitates are soluble

Glass in nonvolatile

Distilled water is used for solutions because it contains necessary minerals

Concentrated is the opposite of dilute

Concentration is measured with molarity and molality

Molarity is measured in grams per mole

USE THIS KEY FOR THE FOLLOWING

A solute b solvent c solution d suspension e colloid

Saltwater

Muddy water

Salt in saltwater

The water in 70% rubbing alcohol

Jello

Gold in a ring that is 60% gold, 40% silver

Homogeneous mixture

Particles settle out

Substance that dissolves

Nitrogen in air

Removed by the drying oven

Mixture with intermediate particle size

Heterogeneous mixture (2)

An alloy

Smoke

SODA DEMONSTRATION

a. Explain using the words solubility, temperature, and gas

b. What was left in the test tube at the end?

c. Which is more dense, soda or water?

d. In which beaker did diffusion occur most rapidly? Why?

CONDUCTIVITY DEMONSTRATION

a. What causes conductivity?

b. Which solutions were electrolytes?

Also, calculations like our lab, and read solubility graph questions P 414; answer questions like p 426 #11&12