How many moles of silver do you have? 8/147.87
for each mole of silver atoms, you have avagnumber*47 electrons.
number electrons: charge/chargeof one electgron
ratio=number added/109
(a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 8.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol.
(b) Imagine adding electrons to the pin until the negative charge has the very large value 2.00 mC. How many electrons are added for every 109 electrons already present?
thanks
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