Plancks constant worksheet help!?!?

Question

It says to fill in the following table, and says C=\v ( \ = wavelength symbol on here) where c = 10^8 m/sec and wants me to give my answers using scientific notation( how would i figure these out what would i have to do)? please help
also the website shows the ws Fill in the blank i tried to do this but was to hard please help this is the worksheet (www.chemadventure.com/5ws5.3.planckscon... (wont let me put the whole URL but add stantworksheet.doc to the end of con)

Example: wave = 3.9x10^-7m, v = 7.7x 10^14 s^1, e = 5.1x10^-19j (idk how to get those here r the problems

1. Fill wave and e given: v = 1.0x10^13 s^-1
2. fill in v and e given: 3.0x10^-4 m = wave
3. fill in wave and e given v= 2.0 x 10^22 s^-1
4. fill in v and e given wave = 2.0 x 10^ -2 m
5. fill in wave and e given: v = 1x 10^7 s^-1
6. fill in v and e given wave = 2.0x10^-10 m
7. fill in wave and e given v= 1.005 x 10^6 s^-1
8. fill in v and e given: wave = 9.052x 10^-6m

please help with this

what about for the ones without c?

Answer 1

You only need two formulas here:

Photon energy = Planck's constant (J s) x frequency (Hz) [notice that Hz is the same thing as s^-1]

And, for any wave motion,

speed = wavelength x frequency [in the case of light, speed = c].

The rest is just arithmetic, which I leave up to you.