Question

How will
you make 3L of 4N NaOH
from 12 N NaOH ?​

Answer 1

Explanation:

4 N NaOH Solution

Therefore 1 litre of 4N NaOH contains 4 x 40 gm NaOH = 160 gm NaOH. Therefore 5 litres of 4N NaOH contains 5 x 160gm = 800 gm NaOH. So 5 Litres of 4N NaOH solution can be prepared by dissolving 800 gms NaOH in 5 litres of distilled water.

hope.it helps

Answer 2

Given:

given solution of NaOH with normality = 12N

To Find:

how to make 3L of 4N NaOH

Solution:

now, we know that,

N1 V1 = N2 V2

N1 = initial normality = 12

N2 = final solution normality = 4

V2 = Final volume = 3L

let's assume V1 = x

12 × x = 3× 4

x = 1

thus in order to prepare 3L of 4N NaOH

we will take 1L of given solution (12 N NaOH) and add 2L water.