CHEM 1110 Quiz 1 for test 3 - dual nature of matter

NAMES

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Two calculation of matter which indicate the wave nature are the Heisenberg uncertainty principle and the De Broglie wave length relationship.  Using these relationship do the following calculations.  (electron mass = 9.11 x 10^-31 kg,  Planck's constant = 6.626068 × 10^-34 m² kg / s)

1)    What is the uncertainty in the momentum and velocity of an electron confined to 1.0 nm of space?  
       (Note the there is very little uncertainty in the mass of the electron.)







                                                momentum uncertainty = __________________

                                                velocity uncertainty = ___________________

2)    What is the wave length of a 100 eV electron? (1 eV = 1.60 x 10_^-19 J)








                                                wave length = ________________