Hydrocrloric Acid (HCL) Solution concentration in Moles

I was only able to get Hydrochloric Acid Solution (HCL) that states 1N (1Mole/liter) Is that equal to the 4% solution??? And if not... How do I use it to make MMS1? Thank You for your attention and advice.

This is in the service of those who, like me, bought a liter of Hidrochloric Acid, and the label read 1N (1Mol/lt) which is 1 Mole per liter of water. And... 1 Mole of HCL = 36,46094 grams. If you calculate 36.5 grams of HCL diluted in 1 liter of water, the solution would be 3,65%, which is a little less than the required 4% to activate MMS. But... as 36.5 grams of HCL will ocupy some of the volume of water, then 1 liter of the solution will have more than 36.5% of HCL. I decided to use it, being that it was so close to the required 4%, and found that it makes the reaction, turning the activated MMS1 to the desired amber color, and the very strong smel of Carbon Dioxide. If any of you have any comments, please do not hesitate, as I will be very grateful. Good health to you all!