The major reaction of the unsaturated compounds is:

Unsaturated compounds are compounds that contain multiple bonds which involve in addition especially with hydrogen and halogens to straighten out the bonds.

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 !