## Search found 4 matches

Sun Feb 08, 2015 12:00 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Salt bridge
Replies: 3
Views: 623

### Re: Salt bridge

What I mean is how do I know when the inert electrode is Pt or Ag or nothing?
Sun Feb 08, 2015 9:58 am
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Salt bridge
Replies: 3
Views: 623

### Salt bridge

How do I know when to include the salt bridge in a cell diagram?
Sun Oct 12, 2014 8:58 pm
Forum: Photoelectric Effect
Topic: Sodium Vapor Lamps (1.19 hw) [ENDORSED]
Replies: 6
Views: 9881

### Sodium Vapor Lamps (1.19 hw)[ENDORSED]

Sodium vapor lamps, used for public lighting, emit yellow light of wavelength 589nm. How much energy is emitted by: a) an excited sodium atom when it generates a photon b) 5.00 mg of sodium atoms emitting light at this wavelength c) 1.00 mol of sodium atoms emitting light at this wavelength Please h...
Sun Oct 12, 2014 8:50 pm
Forum: Photoelectric Effect
Topic: For H, what is common to lines within an emission spectrum?
Replies: 2
Views: 678

### Re: For H, what is common to lines within an emission spectr

Spectral lines imply the different energy levels for electrons in atoms. Lines that have a common n(sub1) are grouped into series: n=1 is Lyman, n=2 is Balmer, n=3 is Paschen, n=4 is Brackett, n=5 is Pfund.