AP Chemistry – Class 32

Date

• Thursday, October 30th

New Material – Quantum Mechanics

• Spectrum Lines – what do you see in the tubes?
• What is different about each tube?
• What explanation is offered for this?

Activity – Hydrogen Spectrum (use your LNB)

• Calculate the energy of each of the first 7 levels of the hydrogen atom. You will need the Rydberg formula (p. 214) to do this step.
• List all of the possible transitions between these levels, from upper to lower levels. For example: 7-1, 7-2.
• Determine the energy of each possible transition. This is determined by calculating the difference between each transition
• Calculate the wavelength associated with each transition. (Note – see p. 215 for more on this)
• Draw the spectrum for Hydrogen. Draw a line for each wavelength, as if drawing on an axis with the wavelength as “x” axis, and each line drawn to the same length.
• Compare your drawn spectrum to the known spectrum

Homework

• Finish spectrum activity
• Ch. 6 Notes (whole chapter)
• PDF to Dropbox by Monday