Chem Test 6

Question 1

Solution

Answer 1

Homogeneous mixture of two or more substances

Question 2

Solute

Answer 2

component of a solution present in lesser quantity

Question 3

Solvent

Answer 3

component of solution present in greatest quantity

Question 4

Aqueous Solution

Answer 4

solvent is water

Question 5

Most common example of solution formation

Answer 5

dissolution of a solid in a liquid

Question 6

Air

Answer 6

Solution

Question 7

Allows

Answer 7

Solution

Question 8

Electrolytes

Answer 8

formed from solutes that are soluble ionic compounds

Compounds dissociate in solution to produce ions that behave as charge carriers

Good Conductors of Electricity

Question 9

Non Electrolytes

Answer 9

formed from nondissociating molecular solutes (non electrolytes) and these solutions are non conductiong

Question 10

True Solution

Answer 10

homogeneous mizture with uniform properties through out

Solute cannot be isolated from solution via filtration

Question 11

Volumes of Solvents and Solutes are not

Answer 11

additive

Question 12

Volume of Solvents and Solute are determined by

Answer 12

the way molecules fit together

Question 13

Only way to determine the identity of all substance in a liquid to distinguid between pure substance and a solution

Answer 13

Chemical Analysis

Question 14

Pure Substance

Answer 14

Has 1 component

Question 15

True Solution

Answer 15

Contain more than 1 substance, with the tiny particles homogeneously intermingled.

Question 16

Colloidal Suspension

Answer 16

Consist of solute particles distributed throughout a solvent

distribution is not completely homogeneous, due to size of colloidal particles

Question 17

Colloid Particle Size

Answer 17

1 nm - 200 nm

Question 18

Solution Particle Size

Answer 18

Smaller than 1 nm

Question 19

Precipitates Particle Size

Answer 19

Greater than 200 nm

Question 20

To the naked eye colloidal suspension and a true solution appear

Answer 20

identical

Question 21

Colloid particles are large enough to

Answer 21

scatter light, liquid appears hazy

Question 22

Suspension

Answer 22

heterogeneous mixture that contains particles much larger than a colloidal suspension, over time these particles may settle

Question 23

Polar Solutes are soluble in

Answer 23

Polar Solvents

Question 24

Nonpolar solutes are soluble in

Answer 24

Nonpolar solvents

Question 25

Degree of Solubility

Answer 25

how much solute can dissolve in a given volume of solvent is a quantitate measure of solubility

Question 26

Magnitude of difference between polarity of solute and solvent

Answer 26

greater then difference the less soluble the solute

Question 27

Temperature

Answer 27

Increase in Temperature Increases Solubility

Question 28

Pressure

Answer 28

Little effect on solubility of solids and liquids the solubility of a gas in liquid is directly proportional to the applied pressure

Question 29

Saturated Solution

Answer 29

When a solution contains all the solute that can be dissolved at a particular temperature

Question 30

Precipitate

Answer 30

solid in contact with the solution

Question 31

super saturated solution

Answer 31

on cooling the excess soloute may remain in the solution for a time very unstable

Question 32

Dynamic Equilibrium

Answer 32

The rate of dissolution and precipitation are equal

Question 33

Henry's Law

Answer 33

the number of moles of a gas dissolved in a liquid at a given temperature is proportional to the partical pressure of the gas. gas solubility is directly proportional to the pressure of that gas in the atmosphere that is in contact with the liquid.

Question 34

Gases are most soluble at what temperature?

Answer 34

Low Temp

Question 35

Respiration Depends on

Answer 35

rapid and efficient exchanged of oxygen and carbon dioxide between the atmosphere and the blood

Question 36

Alveoli

Answer 36

where respiration takes place in lungs Air Sacs

Question 37

Concentration

Answer 37

the amount of solute dissolved in a given amount of solution

Question 38

Concentration =

Answer 38

amount of solute (g of solute) _________________________ Amount of Solution (mL of Solution)

Question 39

% Concentration = AKA MASS VOLUME PERCENT

Answer 39

g of solute ____________ X 100 mL of Solution

Question 40

Mass Mass percent is move useful with

Answer 40

Mixture of Solids

Question 41

Mass Mass % =

Answer 41

g Solute _________ X 100 g Solution

Question 42

PPT = Percent Per Thousand

Answer 42

g solute _______ X1000 g Solution

Question 43

PPM = Parts Per Million

Answer 43

G solute _________ X1,000,000 g solution

Question 44

Molarity

Answer 44

Number of mol of solute per L of solution

Question 45

M =

Answer 45

mol solute __________ L Solution