Theory:

The solubility of a solute is the sum of the solute present in a saturated solution at this temperature.
The concentration of a solution: 
A solution's concentration measures how much solute has dissolved in a given volume of solvent or solution. The concentrated solution is one in which the volume of dissolved solute is relatively high.
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Concentration of the solution in the image increases from left to right

The formula below is used to calculate the concentration of a solution.
 
\(\text{Concentration of solution}\) \(=\) \(\frac{\text{Amount of solute}} {\text{Amount of solvent or solution}}\)
 
There are various ways to express the concentration of a solution, but here, we will learn these three well-known methods:
 
1. Mass by mass percentage 
 
2. Mass by volume percentage
 
3. Volume by volume percentage
 
1. Mass by mass percentage:

We can find the mass percentage of a solution by dividing the mass of solute by the mass of the solution and multiply the product by \(100\).
 
\(=\) \(\frac{\text{Mass of solute}}{\text{Mass of solution}}\) \(\times100\)

2. Mass by volume percentage:

We can find the mass volume percentage of a solution by dividing the mass of solute by the volume of solution and multiply the product by \(100\).
 
\(=\) \(\frac{\text{Mass of solute}}{\text{Volume of solution}}\)\(\times100\)
 
3. Volume by volume percentage:
  
We can find the volume percentage of a solution by dividing the volume of solute by the volume of solution and multiply the product by \(100\).
 
\(=\) \(\frac{\text{Volume of solute}}{\text{Volume of solution}}\)\(\times100\)