Some theoretical considerations in analytical chemistry : Part VIII Rigorous calculation of the hydrogen-ion concentration of acids and bases: a correction

✍ Scribed by Louis Meites; Edmund Bishop

• Publisher: Elsevier Science
• Year: 1963
• Tongue: English
• Weight: 156 KB
• Volume: 29
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/s0003-2670(00)88651-1

✦ Synopsis

The results of some determinations of pyruvic acid by the recommended method are given in Table r. DIRISCT TITRATION c)ii S'YRUVlC ACID WITIt CI~t~IU~S(r~') SOLUTION -~Vliltirrtoi~s jlyrrcvaic/imnrl I:'vrov bY bY ucidinrclPy crrirmtry ( '%J o.zgoo 0.2500 0.00 0.3000 0.2987 --0.40 v*3500 0.3507 -f-O.20 0.4000 0.3387 -0.30 0.4500 O..l510 4-0.20 0.~000 0.4987 -0.25 ~~~c~~~~?~le~ided ~~oced~~rc. Transfer the pyruvic acid solution (or in the case of pyruvute a known volume of the pyruvate solution with an equal voiumc of 0.1 M pcrchloric acid) to a conical flask and add two drops of a 20/O solution of ammonium molybdate. Heat the solution to about 50" and then titrate with standard 0.05 M cerium(IV) perchlorate solution in I M perchloric acid using ferruin as indicator. Standardize the ccrium(IV) solution against sodium oxalatc using the same indicator.