Stoichiometry just number 3.5 and explain how you did it!

34.968+36.956=71.924
71.924/2=35.962 average amu
Add the two masses then take the average.
Since there is only two numbers , you have to divide by 2. :)
hope this helps!

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 !