Asked by Millie
What is the total charge of all the electrons in a 13 kg bar of silver? (Silver has 47 electrons per atom and an atomic mass of 108 u.)
Answers
Answered by
Damon
6*10^23 silver atoms have a mass of 0.108 kg
n of atoms = 13 kg ( 6*10^23 atoms / 0.108 kg)
n of electrons =47*13*6*10^23/0.108
charge on each electron = 1.6*10^-19 Coulombs
so
charge = 1.6*10^-19*47*13*6*10^23/0.108
n of atoms = 13 kg ( 6*10^23 atoms / 0.108 kg)
n of electrons =47*13*6*10^23/0.108
charge on each electron = 1.6*10^-19 Coulombs
so
charge = 1.6*10^-19*47*13*6*10^23/0.108
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