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April 23, 2014

April 23, 2014

Posted by **Jazmin** on Sunday, October 31, 2010 at 10:41pm.

this is my answer

1.66E17

can you please tell me if i did it right

thank you

- chemistry-check answer -
**DrBob222**, Sunday, October 31, 2010 at 11:05pmI have 1.66E18.

10 watt bulb @ 6% = 10*0.06 = 0.6 watt = 0.6 J/s. (I suspect we differ here.)

I used 6.626E-34 for h.

I used 3E8 for c.

I used 550E-9 for the wavelength.

This gave E = 3.61E-19

Then 0.6 J x 1 photon/3.61E-19 J =

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