1.

2. HIGH FREQUENCY
LOW FREQUENCY

3. Plancks Equation
E=hv
E=energy in joules
H=plancks constant=6.63E-34J*s
V=frequency (per second or Hz)
The energy(E) and the frequency(V) of an electromagnetic wave are directly related.
Electromagnetic Wave Equation
C=v
C=speed of light=3.00E8m/s
=wavelength in meters
V=frequency (per second or Hz)
Frequency and wavelength are inversely related.
Wavelength and energy are inversely related.

4.

5. Absorption and Emission Chart of Atoms

6. Flame test
A flame test is a procedure used in chemistry to detect the presence of certain metal ions, based on each element's characteristic emission spectrum.

7.

8.

9.

10.

11.

12.

13.

14. Argon/Neon Spectral Tubes

• Excited in an electrical discharge
• 15. Spectrum: disconnected bands of color
• 16. Spectrum: disconnected bands of

Orange, yellow and green

17. Emission Spectrums

18. More Emission Spectrums
Halogen
Flourescent

19.

20.

21. Light Absorbtion
R
O
V
Y
B
G
Whatever color something is, is opposite the colors mainly being absorbed
White Light
Here, all of the wavelengths (and different colors) are being absorbed. The green is the color that is actually being emitted.
For example:
If you were wearing a red shirt, green would be the color being most absorbed, along with all the rest.

22. According to the graphs
CUSO4
KMnO4
K2CrO4
Copper (II) sulfate absorbs its peak wavelength at around 680 nm, Thus, the color red is best absorbed.
Potassium permanganate absorbs its peak wavelength at around 525 nm. In this substance the color greenish yellow is best absorbed.
Potassium chromate absorbs its peak wavelength at around 440 nm. Hence, the hue greenish blue is best absorbed in this compound.

23. Color Solution Lab
K2CrO4- Peak Absorbance- around 445 nm
- Color: Indigo Light
KMnO4- Peak Absorbance- 515 nm
- Color: Green Light
CuSO4- Peak Absorbance- 650 nm
- Color: Red Light

24.

25. Color Solution Lab

26. Beer-Lamberts Law
http://teaching.shu.ac.uk/hwb/chemistry/tutorials/molspec/beers1.htm