What is the molarity of a solution made by dissolving 2.0 mol of solute in 6.0 L of solvent?

What record? the question is incomplete

Just took the quiz on edgenuity and the correct answer is "c.  4.54 x  10–12  j"

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.

Rate law for this reaction israte of the reaction = k[a]²[b].second order in a  means concentration of a in power of two, and  first order in b means concentration of b in power of one.