Solutions vocab

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Solutions vocab

The Solution to Solutions

Chemistry 2008


Content Objectives

Chemistry swbat define various

terms associated with

solutions by viewing a

PowerPoint and filling in cloze

style notes.

Chemistry students wbat

describe the factors affecting

solution preparation.


Language Objective

You will match solution

opposites and definitions by

sorting terms in pairs.

SW discuss the difference

between a saturated and

unsaturated solution by doing

Saturated or Not web activity

in pairs.


What is a

solution?

A homogenous

mixture of 2 or

more

substances in a

single phase.

http://universe-review.ca/I12-18-

solution.jpg


Solute

The solid, liquid or gas

being dissolved.

Usually present in small

amounts.


Solvent

The liquid or medium which

the solute is dissolved in.

Water is the universal solvent.


Concentrated versus Dilute

A

concentrated

solution has a

HIGH amount

of solute.

A dilute

solution has a

relatively

LOW amount

of solute.


Is it Unsaturated, Saturated

or Supersaturated?

Unsaturated:

If the concentration of solute is lower

than the solubility limit.

Saturated:

A solution that can exist at equilibrium

with visible undissolved solute.

Supersaturated:

When the concentration of solute is

greater than the normal solubility limit.

(usually requires heating and stirring).


Find a partner

Saturated or Not

Get a laptop log in: PCHSlaptop

Password: PClaptopsHS

Go to:

http://www.wwnorton.com/college/chemistry/gilbert2/

tutorials/interface.asp?

chapter=chapter_04&folder=saturated_solutions

Do the activity answer the questions.

Turn in your paper, and return the laptop.


Miscible versus Immiscible

If 2 liquids

dissolve in each

other

Do not separate

over time

Example:

Alcohol and water


Miscible versus Immiscible

http://img.webmd.com/dtmcms/live/webmd/consumer_assets/

site_images/articles/health_tools/skinny_sipping_slideshow/

photolibrary_rm_photo_of_energy_drinks.jpg


Miscible versus Immiscible

If 2 liquids

dissolve in each

other

Do not separate

over time

Example:

Alcohol and water

If the 2 liquids are

insoluble

Forms layers and

separates

Examples:

Oil and Water

Vinegar and Oil


Miscible versus Immiscible

http://img.webmd.com/dtmcms/live/webmd/consumer_assets/

site_images/articles/health_tools/skinny_sipping_slideshow/

photolibrary_rm_photo_of_energy_drinks.jpg


Electrolyte vs. Nonelectrolyte

A substance

containing free

ions (like an ionic

solution)

Can conduct

electricity

Solutions of acids,

bases or salts.

Substances that

dissolve in water

but contain NO

ions.

Do not conduct

electricity

Can either be a

polar or non-polar

molecule.

http://antoine.frostburg.edu/chem/senese/101/

reactions/faq/are-nonelectrolytes-nonpolar.shtml


Factors that AFFECT solution

formation

1. Surface area of solvent (smaller

dissolves faster)

2. Still versus stirring (stirring prevents

concentration gradients which slows

formation)

3. Increasing temperature ( faster the

molecules move the process speeds

up)


Solubility

How much of the solute can be

dissolved into the solvent.

Usually expressed in the

number of grams of solute in

100g of solvent.


Factors that AFFECT

Solubility

1. Strength of intermolecular forces

within the solute and solvent and

between the solute and solvent.

2. The solubility of a gas in a liquid

is directly proportional to the

partial pressure of a solute gas

over the liquid solvent.

3. Temperature.


Content Objectives

Chemistry swbat define various

terms associated with

solutions by viewing a

PowerPoint and filling in cloze

style notes.

Chemistry students wbat

describe the factors affecting

solution preparation.


Language Objective

You will match solution

opposites and definitions by

sorting terms in pairs.

SW discuss the difference

between a saturated and

unsaturated solution by doing

Saturated or Not web activity

in pairs.


So answer the following

How is a saturated solution

different from an unsaturated

solution?

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