Formulas

Question 1

Decay

Answer 1

N(t)=Nv0e^-k(t)
N(t)=Amount left with
Nv0=Ampunt started with
K=Constant
t=time
t=ln 2/ inverse of constant(k)

Question 2

Speed of Light

Answer 2

Speed of Light=.

Wavelength)(Frequency

Question 3

Two ways to find Energy

Answer 3

1. Energy(J)=(Constant)(Frequency)
   [Constant=6.63x10^-34 J/sec]
2. Energy=(Constant)(Speed of Light/Wavelength) [SOL=3 x 10^8m/s]

Question 4

Molecular Formula

Answer 4

Molecular Formula=Molar Mass/Empirical Mass

Question 5

Constant for Ideal Gas Formula=

Answer 5

0. 0821 L•atm/mol•°C
1. 314 J/mol
2. 313 volt Coulomb mol

Question 6

Boyle’s Law

Answer 6

(V1)(P1)=(V2)(P2)

Question 7

Charles’s Law

Answer 7

Volume

Question 8

Gay Lussac’s Law

Answer 8

Pressure

Question 9

Avogadro’s Pronciple

Answer 9

# moles of gas

Question 10

Relative Density of a Gas(STP)=

Answer 10

Molar Mass of Gas

22. 4 L

Question 11

Exact Density of Gas at STP=

Answer 11

Constant • K Temperature

Question 12

moles of Electrons=

Answer 12

96,485 C/mole

Question 14

Units for Standard Heat of Formation

Answer 14

KJ/Mole

Question 15

Pressure on a system will make the direction go which way?

Answer 15

The side with the least number of moles of gas

Question 16

pKw=

Answer 16

-log of Equilibrium constant of water

Question 17

If the pH is 7, how many moles of H+ will there be in solution?

Answer 17

10^-7 M

10^-7 moles H+ / L solution

Question 18

Cell Voltage (E^0)

Answer 18

E Potential of reduced - E potential of oxidized

Question 19

1 m^3 = ? L

Answer 19

1000 L

Question 20

Coefficients for the Combustion of Methane

Answer 20

1, 2, 1, 2

Question 21

Coefficients for the Combustion of Ethane

Answer 21

2, 7, 4, 6

Question 22

Coefficients for the Combustion of Propane

Answer 22

1, 5, 3, 4

Question 23

Coefficients for the Combustion of Butane

Answer 23

2, 13, 8, 10

Question 24

Steps for a Kc

Answer 24

1. Do ICE
2. Find “x”
3. Plug in “x”

*DRAG DOWN # of MOLES

Answer 25

n=moles of electrons shared
F= 96,500 Coulombs/mole
E=Electrical Potential (V)

Question 26

Specific Heat for ice

Answer 26

2.108

Question 27

Specific Heat for water

Answer 27

4.18

Question 28

Specific Heat for Water Vapor

Answer 28

1.996

Question 29

Heat of Fusion

Answer 29

6.02 kJ/mole

Question 30

Heat of Vaporization

Answer 30

40.7 kJ/mole

Question 31

Freezing point depression constant of water

Answer 31

1.86 °C / m

Question 32

Boiling Point Elevation Constant of Water

Answer 32

0.512 °C / m

Question 33

Q(1,3,5)=

Answer 33

m•cp•

Question 34

Q(2,4) =

Answer 34

n • Heat of Fusion/Vaporization