Wear appropriate PPE and work in a fume hood
Determine the concentration of the stock HCl
Use the dilution formula: C1V1 = C2V2
Calculate the volume of stock HCl needed for the desired final volume of 1 N HCl
Add about 70–80% of the final volume of distilled water to a suitable container
Slowly add the measured HCl to the water
Mix thoroughly
Allow the solution to cool if it warms during mixing
Add distilled water to reach the final desired volume
Mix again
Label the container as 1 N HCl with date and hazard information