# Solution and Types of Solution

During titration, different solution having constituents ratio of compounds are mixed and made solution. There are three types of solution in general.

**Normal solution:**The solution which is prepared by dissolving 1 gram equivalent of the solute in 1 liter of the solution is called normal solution.**Semi-Normal solution:**The solution which is prepared by dissolving one half of the gram equivalent of the solute in 1 litre solution is called semi-normal solution.**Decinormal solution:**The solution which is prepared by dissolving (1/10)th of the gram equivalent of the solute in 1 liter of solution is called deci-normal solution.

**Normality factor:** It is the ratio of weight taken to weight to be taken.

$$i.e., \text{ Normality Factor (f)} = \frac{\text{ weight taken }}{\text{weight to be taken}}$$

So, Actual normality = Normality × Normality factor

**Normality Equation:** The equation which is used to determine the strength of unknown solution is called normality equation. It’s mathematical equation is:

Volume of acid × Normality of acid = Volume of Base × Normality of base

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