Respuesta :
The ratio that represents the quantity of solute proportionate to the quantity of solvent or solution is called concentration.
Concentration is an important aspect of chemistry as it gives the estimation of provided solute combined with another solvent or solution.
What is concentration?
A measure of any substance done by molarity, mole fraction, per cent, normality or molality is called concentration. The amount of the solute will be expressed in the terms of the solvent or solution.
The concentration can be expressed in volume (L or mL), molarity (M), N, ppm, etc. The units are not fixed though it is an estimation of the solute from the solvent or the solution.
Therefore, option A is correct.
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A - ratio that describes the amount of solute divided by the amount of solvent or solution