Given the following equation: 8 Fe + Sg ---> 8 FeS If 4.2 moles of sulfur react, what is the mass of FeS produced?
(Hint: Mole -> mole -> mass)
A. 3.0 x 10^3 g B.34 g c. 280 g D. 46 g

The answer is celsius 

Molarity is moles of solute over liters of solution. idk if that is what you are talking about, but you can convert moles of solute to grams of solute using dimensional analyzes by using molar mass found on the periodic table.