1) what is the mass of 1 mole of Sulfur?

2) How many moles of Silver will be formed from 15 moles AgNO3?

Cu + 2AgNO3 ---> Cu(NO3)2 + 2Ag

1 answer

1) what is the atomic mass of Sulfur.

2) It appears the same number of moles Silver come from Silver nitrate. Look at the coefficents.