Is my answer right?: What is the speed of an electron that has a de Broglie wavelength of 191 nm

Favorites|Homepage
Subscriptions | sitemap

HOME > Chemistry > Is my answer right?: What is the speed of an electron that has a de Broglie wavelength of 191 nm

Is my answer right?: What is the speed of an electron that has a de Broglie wavelength of 191 nm

[From: ] [author: ] [Date: 11-10-02] [Hit: ]

11x10^-31)(1.91x10^-… 3803.I entered this answer and the computer keeps telling me its wrong?Please help >.v = 6.626 x 10^-34 J s / (9.......

I got:
(6.626x10^-34)/(9.11x10^-31)(1.91x10^-… 3803.02

I entered this answer and the computer keeps telling me it's wrong?
Please help <3
>.< thanks!

-

wavelength = h / m v

v = h / m x wavelength

v = 6.626 x 10^-34 J s / (9.11 x 10^-31 kg x 191 x 10^-9 m) = 3808 m/s or 3810 m/s (3 sig figs)

1 J = kg m / s^2
1 J s = kg m / s
The units on v = m/s

1

keywords: the,191,nm,is,de,wavelength,What,my,Is,right,of,speed,electron,an,answer,has,Broglie,that,Is my answer right?: What is the speed of an electron that has a de Broglie wavelength of 191 nm

New

Hot