Important Formulas Flashcards
Volume of a cube
V = l3
Volume of a box
V = l•w•h
Volume of a sphere
V = 4/3πr3
Volume of a cylinder
V = πr2h
Relationship between Frequency (ν), Wavelength (λ), and the Speed of Light (c)
ν = c / λ
Relationship between Energy (E), Frequency (ν), Wavelength (λ), and Planck’s Constant (h)
E = hν
E = hc / λ
Relationship between Wavelength (λ), Mass (m), and Velocity (ν) of a Particle
λ = h / mν
Energy of an Electron in an Orbital with Quantum Number n in a hydrogen Atom
En = -2.18 X 10-18 J (1/n2)
(n = 1, 2, 3, . . .)
Change in Energy That Occurs in an Atom When It Undergoes a Transition between Levels ninitial and nfinial
ΔE = -2.18 X 10-18 J (1/n2f - 1/n2i)
Avogadro’s Number
6.022 x 1023
Electron Charge
1.6022 x 10-19 C
Electron Mass
9.1095 x 10-28 g
Faraday Constant (F)
96,487 C/mol electron
Gas Constant (R)
8.314 J/K • mol (0.08206 L • atm/k • mol)
Planck’s Constant
6.626 x 10-34 J•s