Q4 of 27 Page 47

You are given 100 g of NaOH, 200 mL water, beakers and weighing balance. How will you prepare a 1 molar (1 M) solution of NaOH taking sufficient quantities from these?

Preparation of 1M solution of NaOH


As we know that 1 mole of NaOH has 40gm of mass.


Hence, if we want to prepare 1M NaOH solution:


i. First we need to weigh 40gm of NaOH in weighing balance.


ii. Pipette out 1L water from 200mL water and put in a beaker.


iii. Now, dissolve 40gm of NaOH in the beaker.


That’s how 1M solution of NaOH is prepared.


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