Answer
$0.663\cdot 10^{-19}kg$
Work Step by Step
$m=\dfrac{h}{v\lambda}=\dfrac{6.63\cdot 10^{-34}m^2kgs^{-1}}{100ms^{-1}\cdot 0.1\cdot 10^{-15}m}=0.663\cdot 10^{-19}kg$
General Chemistry (4th Edition)
by McQuarrie, Donald A.
Published by
University Science Books
ISBN 10:
1891389602
ISBN 13:
978-1-89138-960-3
Chapter 4 Early Quantum Theory - Problems - Page 133: 36
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