To fulfill the octet rule, electron sharing leads to how many electrons around each atom?

To fulfill the octet rule you figure out how many valence electrons are necessary for the elements group. For example oxygen 6, fluorine 7... etc. Look on periodic table for other elements, the number of valence electrons is the group number 

Since there is the same amount of agn03 in both silver chloride and silver nitrate they produce the same amount of moles. therefore silver chloride produces the same amount of silver nitrate, so your answer is 15.0 moles of silver nitrate. i hope this !