| OBSERVATIONS |
1. Preparation of 250 mL 0.05 M standard oxalic acid solution:
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Mass, w of oxalic acid to be weighed for the preparation of solution |
w = 0.05*126*250 = 1.5750 g
1000
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| Mass of empty weighing bottle = X = |
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| Mass of weighing bottle and oxalic acid = Y = |
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| Mass of weighing bottle after transfer = Z = |
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| Actual mass of oxalic acid transfer = w1 = (y-z) = |
g |
2. Titration of standard oxalic acid solution against NaOH:
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| Solution in burette = oxalic acid | |
| Solution in titrating flask = V1= 20 mL standard oxalic acid | |
| Indicator used = phenolphthalein | |
| End point = colourless to pink | |
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| S.No. |
Burette reading |
Volume of HCl used |
| Initial |
Final |
| 1 |
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| 2 |
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| 3 |
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| Concordant volume (V2) : |
mL |
Table 1:- pH metric Titration
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Volume of HCl taken V3= 25 mL |
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| Add More |
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