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anonymous
 one year ago
Calculate the de Brolie wavelength (in nm) of a hydrogen atom (m=1.674 x 10^27 kg) moving at 1430 cm/s.
anonymous
 one year ago
Calculate the de Brolie wavelength (in nm) of a hydrogen atom (m=1.674 x 10^27 kg) moving at 1430 cm/s.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0do you know de brogile's formula?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\(\sf p=h/ \lambda\)? p=momentum, h=planck's constant, lambda=wavelength.. rearrange the formula to solve for the wavelength: \(\sf \lambda =h/p \) you know that momentum is equal to mass times velocity so sub p=mv to the equation.. it will be \(\sf \lambda =h/mv \) Sub in your given values, just be careful about the units though :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0do you know the value for Planck's constant?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0don't forget the unit, it is very important

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0(6.626x10^34 kg m^2/s^2 s)/(1.674x10^27kg)(14.3m)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0**it should be 6.626x10^34 kg m^2/s and 14.3 m/s kg, m, and s will get cancelled out, so your answer would be in metres, what will you get when you calculated that?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i got a different answer..

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0try recalculating it again.. dw:1443058593861:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I got that answer when I did it again to double check.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Got 2.767983959x10^8

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Is that what you got?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay, i think we got the same answer now. Last thing you have to do is to convert that to nm

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I multiple by 1.0 x 10^9 right?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yeah.. but i think it should be 1x10^9 nm because you're going from m to nm If you are converting from nm to m, then it will be x10^9
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