Question

the normality of a solution of sodium hydroxide 100 ml of which contains 4 gram of NaOH
is ​

Answer 1

Answer:

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Answer 2

Answer:

The normality of solution of sodium hydroxide (NaOH) is equal to 1N.

Explanation:

We have given, the mass of sodium hydroxide  = 4 grams

Volume of sodium hydroxide solution = 100ml = 0.1L

The molecular mass of sodium hydroxide = 23 + 1 + 16 = 40g/mol

The n- factor of NaOH = number of OH⁻ ions = 1

Therefore, equivalent weight of NaOH = 40/1 = 40eq  

Number of gram equivalents = Mass of NaOH/ equivalent mass

                                               = 4/40 = 0.1 g/eq

Normality of NaOH solution = No. of gram equivalents/ Volume (in L)

                                                $=\frac{0.1}{0.1}=1N$

Therefore, the normality of sodium hydroxide solution is 1N.