How do you make 0.02 N EDTA solution?
0.02 M EDTA
- 7.44 g disodium EDTA.
- 1 liter water.
- NaOH.
How do you make 0.2 M EDTA?
1 L 0.2M EDTA pH 8.0
- Weigh out 74.45 g EDTA disodium salt , dihydrate and add to a 1 L beaker.
- Measure out 800 mL MilliQ water and add to the beaker.
- Add a magnetic flea and place on a magnetic stirring plate to mix the solution.
- Add a newly calibrated pH meter into the solution to observe the pH.
What is the normality of 0.01 M EDTA?
Specifications
| Appearance | A clear colorless solution |
|---|---|
| Normality | 0.02 N ± 0.0001 |
| Molarity | 0.01 M |
How do you calculate the normality of EDTA solution?
- You can use this formular, conc in g/dm3 =molar mass/valency * normality.
- The valency of EDTA is 4.
- Molar mass of EDTA is 294.
- Normality is 1.
- Substitute the above parameters in to the formulae.
- Conc in g/dm3 = 294/4 *1=73.5.
- Dry some quantity of EDTA and weight exactly 73.5g.
How do I prepare for EDTA?
EDTA Solution Preparation and Recipe
- Prepare 800 mL of distilled water in a suitable container.
- Add 11.7 g of EDTA to the solution.
- Slowly adjust the pH to 8.0 with 2 M NaOH. (Unless using the salt, EDTA often requires extended time and basic pH conditions to completely dissolve.) Store for up to 3 mo at 4°C.
How do you calculate EDTA concentration?
Calculate the concentration of calcium ions in the hard water sample.
- Calculate the average titre of EDTA: average titre = (8.76 + 8.80 + 8.78) ÷ 3 = 8.78 mL = 8.78 x 10-3 L.
- Calculate the moles of EDTA in the average titre: moles(EDTA) = concentration (mol L-1) x volume (L) = 0.010 x 8.78 x 10-3 = 8.78 x 10-5 mol.
How do you make 500mm EDTA?
Procedure
- Stir 186.1 g disodium ethylenediaminetetraacetate•2H2O into 800 ml of distilled water.
- Stir the solution vigorously using a magnetic stirrer.
- Add NaOH solution to adjust the pH to 8.0.
- Dilute the solution to 1 L with distilled water.
- Filter the solution through a 0.5-micron filter.
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