Ch1-6

Question 1

Intensive property

Answer 1

Boiling point, freezing point, density, temperature, pressure

Question 2

Extensive property

Answer 2

Mass, volumes, moles

Question 3

Separating mixtures

Answer 3

Manually, magnetism, dissolving, filtration, evaporation, crystallization, distillation, chromatography

Question 4

State function

Answer 4

Property whose value does not depend on path

Mass, pressure, density, energy, temperature, volume, enthalpy, entropy, Gibbs, chemical composition

Question 5

Celsius and F

Answer 5

C = 5/9 (F -32)

Question 6

Kelvin

Answer 6

K = C+ 273

Question 7

Hess’s Law

Answer 7

Measure of enthalpy change of chemical reaction

+H endothermic energy in
-H exothermic energy out

Question 8

Joule : 1 cal = J….

Specific heat capacity of water

Answer 8

4.184 J

Question 9

Q = ?

Answer 9

s x m x delta T
S= specific heat capacity
M = mass in grams
T = C

Question 10

Entropy S =

Answer 10

Delta S= S final - S initial

J/mol K

Question 11

Gibbs free energy

Answer 11

G =H - TS

-G = spontaneous
+G = non spontaneous

Question 12

E(cell) =

Answer 12

E redux - E oxid

More + more energy u get out

Question 13

First law thermometer

Answer 13

Energy cannot be created or destroyed

Question 14

2nd law of thermos

Answer 14

Not all energy can be used
Disorder tends to increase over time

Question 15

Intermolecular forces

Answer 15

Hydrogen bonds
Ion-dipole
Dipole dipole
Dipole induced dipole
London dispersion forces

Question 16

1 atm ….

Answer 16

14.7 psi =1.0135 bars 760 mmHG = 760 torr at seas level

Question 17

Mole

Answer 17

6.023x10^23

Question 18

Boyles law PV

Answer 18

P1 x V1 = P2 x V2

Question 19

Charles law V/T

Answer 19

Gases heated the volume will increase with pressure held constant

Question 20

Gay-Lissacs law P/T

Answer 20

Pressure increases as temperature increases if volume held constant

Question 21

Video gas law

Answer 21

PV =NRT
R= .0821 L atm / mol K

Question 22

Van der waals equation

Answer 22

P + an^2/V2) + (V -nb) = nRT
a= attraction
b= volume of gas molecules
n= number of moles of gas

Question 23

Molarity M

Answer 23

Moles solute / L of solution

Question 24

molality m

Answer 24

Moles solutes / kg solvent

Question 25

Mass percent

Answer 25

Mass of solute / mass solution. X 100

Question 26

Soluble

Answer 26

Group 1 elements Ammonium NH4. + Nitrates NO3- Chlorides Cl- Not ag, hg, cl, pb Sulfates SO4. -2

Question 27

Insoluble

Answer 27

Carbonates CO3 -2 Hydroxide OH- Sulfides S -2

Question 28

Henry’s law

Answer 28

How u force gas carbonation into soda

Question 29

Dilution of solutions

Answer 29

M1 x V1 = M2 x V2

Question 30

Colligative property

Answer 30

Depends on the number of sultry particles not type Vapor pressure lowering Boiling point elevation Freezing point depression Osmotic pressure

Question 31

Freezing point depression

Answer 31

Delta T = -iKfm I = number of ions dissolves Kf = constant m = molality = molar mass = solute moles/kg solvent

Question 32

Raoults law

Answer 32

P sol = P1X1 + P2X2 etc P1 = pressure of or P knot X1 = mole fraction of this part