### Calculation of Normality

**Calculation of Normality**

Equivalent weight (EW) = Molecular weight (MW) / Valency (Z)

**Normality (N)** =Equivalent weight (EW) / Volume of Solution (1000 ml.)

Meq = Actual weight (W) / Equivalent weight (EW)

**Example: **Molecular wt of K_{2}Cr_{2}O_{7} is 294.148 gm

Valency = 6 (because of Cr ^{-6})

EW = 294.148/6 = 49.025 [....]

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