Formulas for Final

Chem

Speed of Light

3.00×10^8 m/s

DeBroglie Equation

mass*velocity=momentum

Wavelength/Frequency Equation

frequency = (speed of light)/(wavelength)

Planck’s Constant

6.626×10^(-34)J*s

Avogadro’s Number

6.022×10^(23) atoms/mol

Energy of a Photon

E=h(frequency)

E=h*c/(wavelength)

Rydberg Equation

n: energy levels/orbitals

R: rydberg’s constant

Rydberg’s Constant

1.097×10^7m^-1

Mass of an electron

Change in Energy Equations

change in E = E(final) - E(initial)

Relationship of energy of atoms and photons

E_atom = -E_photon

Change in Energy

E_final - E_initial

Heat and heat capacity relationship

q = C_p*(change in temp)

Heat for a specific amount of substance

Heat Exchange

Work when gases expand

What is enthalpy

Sum of internal energy plus pressure times volume

Change in Enthalpy for a reaction using bonds

Two formulas for R based on unit of pressure

Dalton’s Law of Partial Pressure

The partial pressure of gas i = the mole fraction times the total pressure

RMS Velocity (what should molar mass be in?)

molar mass: kg/mol because R is in joules and 1J=1kg*m²/s²

Graham’s Law of Effusion

r: rate

M: molarity

Van der Waals Equation and when it’s used

used: High Pressure, Low Temp

Density of a Gas