Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 7.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mole. 1.8361*10**24 (b) electro

Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 7.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mole. 1.8361*10**24 (b) electrons are added to the pin until the net negative charge is 1.00 mc. how many electrons are added for every 109 electrons already present