The Molar Concentration of Solute is a measure of the concentration of a chemical species, in particular of a solute in a solution, in terms of amount of substance per unit volume of solution. And is denoted by c. Molar Concentration of Solute is usually measured using the Mole per Liter for Molar Concentration. Note that the value of Molar Concentration of Solute is always negative. Typically, the value of Molar Concentration of Solute is greater than 0.