Standardization of NaOH Solution Using Oxalic Acid

standardization of NaOH Solution Using Oxalic Acid

H2C2O4.2H2O :.6253.0001g. So the concentration of H2C2O4.2H2O with uncertainty.0516.47748 x 10-5 mol/dm. Preparation of the Na2OH solution. To analyze errors that occur during standardization experiments. Variables: Independent # o olume of NaOH used since 'cm of NaOH is ta! The contents of the flask were love and brave new world(unfinished) titrated against NaOH solution from the burette till a permanent light pink colour appeared.

Preparation of the dilute H2C2O4.2H2O.
Mass of pure H2C2O4.2H2O.
Detection of Ions in Solutions Using Acid/Base Chemistry: A Quality Control Test.

Hypothesis: If NaOH is added to Hydrated Oxalic acid, then the hydrogen ions from the acid will react with hydroxide ions from NaOH to produce water. Volume in the volumetric flask : more. The experiment was repeated till concordant results were obtained and recorded. En for all trials *ependent# o olume of oxalic acid solution usedthe "olume of oxalic acid solution used would. The rest forms a colorless this experiment, the moles of water of crystallization is calculated using titration. The concentration of diluted NaOH used : MaVa a MbVb b Mb 2 (0.0516 mol/dm.0287dm) (1.025dm).1185. Cm3.510-5m3, titration B Titration 1 (10-6m3) Titration 2 (10-6m3) Titration 3 (10-6m3) Final Volume.50.30.40 Initial Volume.00.00.00 Volume Used.50.30.40.

3 Uncertainty :.7-29.6.7-29.0.7-27.5 x 100.4.7 Gross volume of H2C2O4.2H2O used with percentage of more. The concentration of H2C2O4.2H2O : Number of moles Volume (dm).0129 mol.25.0516 mol/dm. 0.1cm.60.00.50 Qualitative data : The colour indicator (phenolphthalein) in the NaOH solution changes from pink to colourless. Average titre Titre1Titre2Titre33. cm3.74 10-5m3, calculations: Titration A, from the results of the titration calculate the concentration of NaOH in moles (molarity normals (normality) and g/litre. Since two moles of NaOH react with one mole of oxalic acid, we can nd out the moles of oxalic acid used, then using the mass of the crystals ta! Extracts from this document.