Complexometric Determination of Ca2+ in Water by Titration with EDTA
Data
Mass EDTA 0.6098g
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DI H2O Titration: initially purple with 4 drops of indicator, 0.2mL EDTA added to 50mL of DI H2O
Tap H2O Titration: initially pink-ish; 50mL each
| Trial | EDTA added (mL) |
| 1 | 6.45 |
| 2 | 6.40 |
| 3 | 6.39 |
Ca2+ Unknown Titration (diluted 1:4 in a 150mL solution) 50mL each
| Trial | EDTA Added |
| 1 | 14.6 |
| 2 | 14.5 |
| 3 | 14.3 |