U3-5-3 - Standard Solutions

Question 1

Name this piece of equipment

Answer 1

Volumetric flask

OR standard flask

Question 2

Complete the missing step in the procedure to make a standard solution.

1. ……..
2. Add the solution with rinsings into a volumetric flask.
3. Make the solution up to the mark with distilled water.

Answer 2

1. Dissolve the solid in a small volume of water.

Question 3

Complete the missing step in the procedure to make a standard solution.

1. Dissolve the solid in a small volume of water.
2. …..
3. Make the solution up to the mark with distilled water.

Answer 3

2.Add the solution with rinsings into a volumetric flask.

Question 4

Complete the missing step in the procedure to make a standard solution.

1. Dissolve the solid in a small volume of water.
2. Add the solution with rinsings into a volumetric flask.
3. …..

Answer 4

3.Make the solution up to the mark with distilled water.

‘deionised water’ is also OK