As soon as the two several hours are completed, turn the digestor block off and permit the vials to remain inside the device for 15 to twenty minutes to cool. Take out the vials and return them into the vial rack. Warning: the vials will however be warm.C O D = 8000 ( b ? s ) n T h e   t i c h   m a u   t h u displaystyle COD= frac 8000(b-s)n Th

The two ways of figuring out pH values (pH indicator vs . pH meter) ought to demonstrate similar pH values for the people solutions. What was various?Get hold of a vial that contains your not known reliable acid out of your instructor and report the letter and variety of this unknown acid on the information sheet.Put the magnetic stir-bar into the