Wednesday, 7 May 2014

How To prepare 1M and 0.1M NaOH


PREPARATION 1M NaOH and 0.1M NaOH

 

To prepare 1M and 0.1M NaOH
NaOH is one of the most useful base in the laboratory
 

APPARATUS: 500ml Beaker, stirrer, 1000ml volumetric flask, cold water bath

REAGENT: NaOH pellet, distilled water.

PROCEDURE:

1.      Weigh 40g (for 1M) and 4g (for 0.1M) of NaOH pellet into a 500ml beaker,

2.      Add 200ml distilled water and stir in a cold water bath till it is completely dissolved.

3.      Transfer into 1000ml volumetric flask, make up to the mark with distilled water and shake

NB: If the water level fall after making up, add water to the mark again until it stop

falling below the mark.

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