Question

प्रश्न-7 यदि 100 ml NaOH विलयन में 0.4g NaOH घुला हो तो विलयन की नार्मलता परिकलित कीजिए। [2] Calculate the normality of solution of NaOH, if 0.4 g of NaOH is dissolved in 100 ml of the solution.

Answer 1

Answer:

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Answer 2

Given :

Volume of NaOH = 100 ml

Weight of NaOH = 0.4 g

To find :

The normality of the solution .

Solution :

Normality of a solution = ( n-factor * weight * 1000 ) / ( Molar mass * Volume )

Now ,

n-factor of NaOH = 1

The molar mass of NaOH = 40 gmo$l^{-1}$

Normality = ( 1 * 0.4 * 1000 ) / ( 40 * 100 )

=> Normality = 0.1 N

The normality of the solution is 0.1 N .