Assuming that the smallest measurable wavelength in an experiment is 0.330 fm(femtometers), what is the maximum mass of an object traveling at 157 m·s^–1 for which the de Broglie wavelength is observable?

Question

mass = ? kg

Chemistry - DrBob222, Monday, October 29, 2012 at 12:29am
wavelength = h/mv
Substitute wavelength (in meters) with v = m/s and solve for mass in kg.

Chemistry - Anonymous, Tuesday, October 30, 2012 at 1:02pm
I don't get the equation.

Answer 1

wavelength is given to you as 0.330 fm. You convert that to meters. 1E15 fm = 1m
h is Planck's constant = 6.6262E-34 J.s
m = mass in kg
v = velocity in m/s