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Concentration and quantity of matter or concentration in mol/L, formerly known as molarity or molar concentration, is the most commonly used unit of concentration. It expresses the ratio between the quantity of matter in the solute (in moles) and the volume of the solution (in liters). Want to know more about this subject? Brasil Escola What is concentration in quantity of matter? - http://brasilescola.com/o-que-e/quimi... Mundo Educação Exercises on Concentration in Mol/L or Molarity - http://exercicios.mundoeducacao.com/e... Prepara Enem Concentration in quantity of matter or in mol/L - https://www.preparaenem.com/quimica/c... Chemistry Manual Molar mass and number of moles - https://www.manualdaquimica.com/quimi... Follow us: Brasil Escola: http://www.brasilescola.com/ Twitter: / brasilescola Facebook: / brasilescola Instagram: / brasilescolaoficial #BrasilEscola #Química #Molaridade