Question

What is percent concentration?

Answer 1

Solutions are defined as homogenous mixtures of particles of size less than $1$nm. They can be formed by two or more gases, liquid or solid. Solution has: solvent which is present in large quantity and solute which is comparatively less then solvent. Ex: sugar in water solution, where sugar (solid) is solute and water (liquid) is solvent.

Complete answer:
Concentration of a solution is the measure of the amount of solute present in the given solution. A solution depending on the amount of solute is classified as: Dilute, Saturated and supersaturated.
Concentration $= \dfrac{{{\text{mass of solute present (gm)}}}}{{{\text{volume of solution (l)}}}}$
Percent concentration is defined as the percent of solute present in solution either: by mass, by volume, mass by volume percentage.
Let us take component P as solute and Q as solvent then:
Mass percent:
Mass $\%$ of component P $= \dfrac{{{\text{mass of P in solution}}}}{{{\text{total mass of solution}}}} \times 100$
Volume percent:
${\text{volume \% of P = }}\dfrac{{{\text{volume of P in solution}}}}{{{\text{volume of solution}}}} \times 100$
Mass by volume: The mass of solute present per $100ml$ of solution.

Note:
Dilute solution has a low quantity of solute present which tells that the more solute can be added to solvent. Saturated has the accurate amount of solute present and supersaturated has more solute which does not dissolve.