Steps for the preparation of a standard solution?

Answer 1

1. Weigh the necessary substance

2. Put this substance in a bottle or Berzelius, Erlenmeyer flask.

3. Add slowly the adequate volume of solvent and stir.

4. Apply a label (date, name of the operator, name of the solution, concentration, etc.).

Answer 2

1. Weigh the necessary substance (observe the indications: calcination, drying, etc.) .

2. Put this substance in a 1 L volumetric flask.

3. Add slowly approx. 200 mL distilled water and stir.

4. Put the flask in a thermostat at 20 0C and maintain for 1 hour.

5. Add distilled water up to the mark. Stir vigorously.

6. If necessary standardize the solution by titration following the suitable recommendations.

7. Transfer the solution in a bottle and apply a label (date, name of the operator, name of the solution, normality).

Answer 3

This is the dissolution of a substance (solute) in a solvent.

Answer 4

1)Simple solution

2)By chemical reaction

3)Extraction

Answer 5

dissolve bum in other bum ckecks