Asked by Jerry
A current of 2.50 A is passed through a solution containing Cu+2 ions for 4.00 hours. Calculate the mass of Cu atoms that form at the cathode.
Charge= current*time
Convert the charge in coulombs to number of electrons.
Since it takes two electrons per Cu+2 atom, divide the number of electrons by two, and you have the number of atoms of Cu. Change this to mass, either by mass/atom, or change to moles (avag number), then to mass.
Charge= current*time
Convert the charge in coulombs to number of electrons.
Since it takes two electrons per Cu+2 atom, divide the number of electrons by two, and you have the number of atoms of Cu. Change this to mass, either by mass/atom, or change to moles (avag number), then to mass.
Answers
Answered by
yusra
14.5
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