How to make 6N HCl from concentrate?

Answer 1

Normality is equal to molarity if only a single hydrogen is involved, which fortunately it is.

35% HCl contains 350 grams of HCl per 1000 grams (or ml) of water. What is desired is 10 ml of a 6 Normal (or molar) solution. The molecular weight of HCl is 36 grams/mole, so 6 normal would be 216 grams per 1000 mls. This is equivalent to 2.16 grams per 10 milliliters (1000 ml = 1 liter). 35% HCl contains 0.350 grams per ml, so one would need 6.17 ml to give 2.16 grams. The other 3.82 ml will be pure water.

Accordingly you can prepare as much quantity as you require.

Answer 2

To make 6N HCl from a concentrated solution, you can calculate the volume of concentrated HCl needed based on its concentration and the desired final volume of 6N solution. Then, slowly add the calculated volume of concentrated HCl to the appropriate amount of water while stirring until the desired volume is reached. Use caution and appropriate protective gear as concentrated HCl is corrosive.