Unit 3

Question 1

Kinetic Molecular Theory

Answer 1

Describes Ideal Gas No Attractive Forces

Question 2

Boyles Law

Answer 2

Inverse relationship of pressure and volume P₁V₁=P₂V₂

Question 3

Charles Law

Answer 3

Proportional relationship of temperature and volume V/T=V/T

Question 4

Combined Gas Law

Answer 4

No direct relationships PV/T=PV/T

Question 5

Avogadros Law

Answer 5

Amount/Volume Relationship If two gases have same temp & pressure, must have same # of molecules

Question 6

Daltons Law

Answer 6

If you have mixture of gases, the sum of all the pressures of the gases equals total pressure of mixture

Question 7

Use % to find Partial Pressure

Answer 7

Mole percentage of gases overall makeup is proportinoal to percentage it contributes to overall pressure

Question 8

Effusion

Answer 8

r1/r2=m2/m1

Question 9

Root Means Square

Answer 9

Assumes molecule possess avg. kinetic energy Urms= SqrRt(3RT/M)

Question 10

Ideal Gas Law

Answer 10

PV=nRT

Question 11

Ideal Gas Law (for Density/Molar Mass)

Answer 11

M=dRT/P

Question 12

Van Der Waals Equation

Answer 12

Tweaks ideal gas law for attractive forces a & b are constants for each molecule P=(nRT/V-nb)-(n² a/ v²)

Question 13

1 mol of an gas @ STP

Answer 13

Equals 22.4L

Question 14

Mass-Volume Stoichometry

Answer 14

Mass Given -> Moles Given -> Mols of Unknown -> Volume of Unknown

Question 15

Solute

Answer 15

Substance being disolved

Question 16

Solvent

Answer 16

Does the disolving

Question 17

Soluble

Answer 17

Able to be dissolved

Question 18

Insoluble

Answer 18

Cant be dissolved

Question 19

Like Dissolves

Answer 19

Like

Question 20

Suspensions

Answer 20

needs to be constantly stirred or solute particles will settle out Can be filtered out easily

Question 21

Colloids

Answer 21

Mixture that appears to be solution, but will eventually settle out Test with Tyndall Effect (shinning light)

Question 22

Liquid-Gas Solution Factors

Answer 22

Temperature and Pressure

Question 23

Most are soluble

Answer 23

Nitrate Salts

Alkali Metal Salts

Ammonium Salts

Halogen Salts (except lead. mercury, silver)

Sulfate Salts (except lead, mercury, barium, calcium)

Question 24

Molarity

Answer 24

Moles Solute/Liters Solution

Question 25

Molality

Answer 25

Moles Solute/Kilogram Solvent

Question 26

Mass Percentage

Answer 26

mass component/mass solution x100%

Question 27

ppm

Answer 27

mass component/mass solution x10^6

Question 28

ppb

Answer 28

mass component/mass solution x10^9

Question 29

Volatility

Answer 29

volatile substances evaporate quickly

Question 30

Four Colligative Properties

Answer 30

Vapor Pressure Reduction

Boiling Point Elevation

Freezing Point Depression

Osmotic Pressure

Question 31

Boiling Point Elevation

Answer 31

[Delta]T_b=K_b x m

Constant is .52 c/m

Question 32

Freezing Point Depression

Answer 32

[Delta]Tf=K_f x m

Constant is 1.86 c/m

Question 33

Osmotic Pressure

Answer 33

[Pie Symbol?]=MRT

Question 34

Isotonic

Answer 34

When two solutions of indentical concentrations are separated

Question 35

Hypotonic

Answer 35

One solution os lower than others

Question 36

Hypertonic

Answer 36

One solution is higher than other