Aninnt -05

m 9o deemine quanihy oh oxal'e atid prmnt in somord oxalic aeid cdulon using Na04 co/ubi'on o6 0.1 N Narmaliy

2 Papuiomenio wath glan. Araclional weigh box. weighi baJanee aporalu, memuring Rlank, conicas Alak, 5ml. pipehk, bu e burhe tben d, £ilkr pope Cwhi'h), oxalie avd, Na OH oluhion a heno/ph halin indirad .

3 hopNy he procen inuolues 4haAon ueala acid ie. (Cooy) 9 -ainthong bare NaUH, uning phenolpAMabin as on ineit -aArr, he racon Fol/ows »,

Tooty Co0 Na0HCouN Hom, a end povnt he amount ob tid decomes eouiu de- n to amou 6ae and 9h/-pink colour o indieedor ope, oedepeP prypoe 9undond oxalic acid 1oluton by, htiatly weighing empy wakh glan Han adding o.63g. o rys% - tine Oraic ocid ung a meauning flask B6m/, wakr satord wi 0.6 3. Oreelic ocid to has tonr en - aAon o oxa/¢ od secomeg 0. 639/1gom1, by he

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