EDIT: I did the titration. I made use of 500ml of my inventory solution HCl, and titrated in opposition to my inventory solution of NaOH. HCl is 0.001M and NaOH is 5M. Scrape the copyright on to a flat surface. The best detail is to utilize blank items (not inked, https://psychedelicstrippyworld.shop/product/buy-copyright-pen/