Energy guide Cheat Sheet

A Education › Chemistry cheat sheet in English by ChemIsForSheeit

Small review sheet to help study for this test

Chemistry Stuff Useful Boring

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Constants

h= 6.63x10^-34J*s
c=3x10⁸ m/s

h is Planck's Constant
c is speed of light

Purpose for flame test

To identify a metal by its color

When is color emitted?

When the electron comes back to its groundstate

Harmful and little effect radiations

Gamma Rays	Long Radio waves
X rays	Microwaves
UV or UltraViolet	IR or Infrared

Formulas

C=VA (A is lambda)
E=hV

E is energy
V is frequency
A is lambda

How an electron emits a photon

Heat or electricity is applied to an atom, and the electron absorbs the energy and then gets excited; leaves its ground state, and comes back to its nucleus due to it being attracted, and then releases energy; Photon

Conversions

1m=1x10⁹nm
1kHz=1x10³Hz
1mHz=1x10⁶Hz

mole of a photon

(6.02x10²³)(6.63x10^-34)(V)

Multiply this exactly how this is once you get your V and you will get your mole of a photon for the problem.

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