Note: concentrated sulphuric acid is very corrosive and must be handled with care, taking all protective measures as required.
The quantity of concentrated sulphuric acid (18N) required to make 1 l. of 0.5N diluted acid is 1000 ml. *0.5/18=27.78 ml.
Fill a 1 litre volumetric flask to between 600 and 700 ml. with distilled water. Gradually add the measured quantity of concentrated sulphuric acid while swirling to ensure a good mixture, and the dissipation of heat generated. Continue swirling for a minute after all acid has been added.
Let liquid stand until content is cooled to room temperature.
Add distilled water to about 1/2" below mark and homogenize contents with stopper closed. Top up to mark with distilled water and homogenize again.
The solution is now ready for use. (approximately 0.5N).
how would you prepare 1.00 L of a .50M solution of H2SO4 from concentrated (18M) sulfric acid?
2 answers
All concentrations above should have been expressed in M (and not N).