C20 Terms

Question 1

continuous phase

Answer 1

When there is an unbroken phase

Question 2

dispersed phase

Answer 2

A phase that is a minority in a heterogeneous mixture and that is dispersed throughout the continuous phase

Question 3

gel

Answer 3

Consist of a solid dispersed in a liquid

Question 4

sol

Answer 4

If the solid in liquid mixture is more like a liquid than a gel

Question 5

emulsion

Answer 5

A heterogeneous mixture that contains two or more immiscible particles

Question 6

immiscible

Answer 6

Not able to dissolve into another

Question 7

foam

Answer 7

Forms when a gas is whipped into a liquid so that it makes a mixture of bubbles within the liquid

Question 8

aerosol

Answer 8

Tiny solid particles or liquid drops that are dispersed in a gas

Question 9

colloidal dispersion

Answer 9

If the particles are between 1nm and 1um

Question 10

suspension

Answer 10

Fluid mixtures whose dispersed particles are larger than 1um in size

Question 11

Tyndall effect

Answer 11

When a beam of light shines through a mixture and can be clearly seen

Question 12

solution

Answer 12

Uniform mixtures of pure substances that consist of a single phase

Question 13

solute

Answer 13

The substance that is to be dissolved

Question 14

solvent

Answer 14

The substance that does the dissolving

Question 15

amalgam

Answer 15

The substance formed when mercury is dissolved in gold

Question 16

dissociation

Answer 16

Ions are pulled and wedged from the crystal

Question 17

soluble

Answer 17

A substance is soluble when it can be dissolved by a solvent.

Question 18

miscible

Answer 18

Liquids that can freely mix in any proportion.

Question 19

solubility

Answer 19

The maximum amount of solute that will be dissolved in a given amount of solvent at a given temperature

Question 20

insoluble

Answer 20

Solutes that cannot mix in certain solvents

Question 21

Henry’s Law

Answer 21

States that the greater the pressure of a gas on a liquid the greater the mass of the gas that will remain dissolved at any given temperature.

Question 22

saturated

Answer 22

No more solute can be dissolved in the solvent at this temperature.

Question 23

unsaturated

Answer 23

Solutions that contain less solute than their solubility

Question 24

supersaturated

Answer 24

Has more dissolved solute than a saturated solution should have at a given temperature

Question 25

concentration

Answer 25

How much solute in the solution

Question 26

percentage by mass

Answer 26

The percent of solute in the solution

Question 27

mole (mol)

Answer 27

An SI base unit

Question 28

molarity (M)

Answer 28

Solution concentration measured in intifada of moles of solute per liter of solution.

Question 29

colligative properties

Answer 29

A physical property of a solvent that depends on the concentration of the solute particles and not the kind of solute.

Question 30

freezing-point depression

Answer 30

The number of degrees the freezing point of a solvent is reduced per mole of dissolved solute particles a colligative property of the solvent.

Question 31

boiling-point elevation

Answer 31

The number of the boiling point is raised

Question 32

osmosis

Answer 32

The diffusion of a fluid through a semipermeable membrane from a region of higher concentration to one of lower concentration.

Question 33

semipermeable membrane

Answer 33

A thin sheet of material that allows solvent particles to pass through but not solute

Question 34

osmotic pressure

Answer 34

The driving force of an osmosis

Question 35

reverse osmosis

Answer 35

Water is filtered in a pressurized container

Question 36

What kinds of substances may form mixtures?

Answer 36

Liquids. Solids. Gasses.

Question 37

Name and describe the two phases of a heterogenous mixture in which one phase is mixed in anther.

Answer 37

Idk

Question 38

What happens to light when it passes through a colloidal a similar colloidal dispersion?

Answer 38

It is refracted.

Question 39

What is often visibly different about a suspension compared to a similar colloidal dispersion?

Answer 39

The light is bent and reflected

Question 40

What gas solutions are not possible?

Answer 40

Liquid an solid

Question 40

Why is water such an effective solvent?

Answer 40

Because the molecules are electrically charged.

Question 40

Describe the three steps in the solution process.

Answer 40

The solute is placed in the solvent. Ye solute is hydrated. And the solute is dissociated.

Question 40

How can an unstable solution become supersaturated without any solute being added or any solvent being removed?

Answer 40

The temperature is cooled.

Question 41

How is the solubility of a solute related to its concentration in general?

Answer 41

It increases it

Question 42

When mixing a solution to attain a certain concentration measured in percentage by mass how do you determine the amount of solvent needed?

Answer 42

By measuring

Question 43

How does the presence of a solute affect the boiling point of a solvent? The freezing point?

Answer 43

It raises it. It lowers it.

Question 44

How do cells control the concentration of solutes inside their cellular membranes?

Answer 44

By filtering them