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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.

**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:**

- Mass by mass percentage
- Mass by volume percentage
- 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 \(100\).

Mass by mass percentage \(=\) \(\frac{\text{Mass of solute}}{\text{Mass of solution}}\) \(\times100\) |

**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 \(100\).

Mass by volume percentage \(=\) \(\frac{\text{Mass of solute}}{\text{Volume of solution}}\)\(\times100\) |

**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 \(100\).

Volume by volume percentage \(=\) \(\frac{\text{Volume of solute}}{\text{Volume of solution}}\)\(\times100\) |