Please use this example to do your lab report. Title: Titration of H2C2O4.H2O with NaOH Aim: Predict from calculation and measure the volume of NaOH needed to neutralize 0.020dm3 of H2C2O4.2H2O. Introduction: Materials List: H2C2O4.2H2O powder NaOH powder Phenolphthalein indicator solution Apparatus List: 0.020dm3 pipette (20ml) pipette pump burette, 0.050dm3(50ml) 2beakers, 250ml Procedures: 1. 2. Observations: Data: NaOH solution: Mass= 0.41grams in 0.100dm3 water solution C2O4H2.2H2O: Mass=1.26grams in 0.100dm3 water solution Titration Run1 Run 2 Titration Data Start Volume, dm3 Finish Volume, dm3 Volume NaOH Used 0.00 0.042 0.042 0.05 0.048 0.044 Average Volume 0.043 Data Processing (Use your values below) Given that we use 0.020dm3 of oxalic acid in the beaker under the burette, what volume do we predict that we will titrate of NaOH? We know the Mr for NaOH and oxalic acid or H2C2O4.2H2O. Now the concentration of acid and base are: molesA 1.26 /126 CA .1 mole/dm3 0.100dm3 0.100 CB molesB 0.41/ 40.0 .102 mole/dm3 0.100dm3 0.100 The neutralization equation for the titration of oxalic acid with NaOH is as follows: H2C2O4.2H2O+ 2NaOHNa2C2O4.2H2O+2H2O CAVA 1 CBVB 2 Here CA and CB are the concentration of acid and base. NaOH is the base. H2C2O4.H2O is the acid. 2 CAVA VB CB We used 0.020dm3 or 20ml of oxalic acid into which we added phenolphthalein indicator when we did the titration. Therefore CAVA CB 0.1 VB 2* *0.020 0.1 VB 0.040dm3 or 40ml VB 2 Conclusions (How does the volume calculated and measured compare? Are they close or far apart?)