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So far, we have seen the common concentration and the title. They show masses (in mg, g, kg, etc.) or volumes (in mL, L, m3, etc.). These concentrations are widely used in practice — in commerce, industry, etc. Let's now study other forms of concentration, in which the quantity of solute is expressed in moles. These forms are more important for Chemistry, since the mole is the basic unit of quantity of matter, which makes chemical calculations extraordinarily easier. To facilitate learning, watch our video lesson on the concept of mole and molar mass: https://www.youtube.com/watch?v=Bkqn8...