Pleasant come across, something like that Sure. However, uhm, I meant calculations with weights in mg rather than mol/vol. To use that website you have to do added hand calculations and know what you might be doing in order to calculate the pH when you insert 50g NaOH to 750ml https://deadheadchemistdmt05020.pages10.com/the-smart-trick-of-buy-4-aco-copyright-usa-that-nobody-is-discussing-71614140