Titrations

Question 1

What is the aim

Answer 1

To find out how much hydrochloric acid is needed to neutralise 20cm3 of a sodium hydroxide solution of an unknown concentration.

Question 2

Explain how to do the experiment - 6 steps

Answer 2

1. Use the pipette to get 20cm3 of an alkaline. Add to a conical flask.
2. Add the indicator and place on a white tile.
3. Fill the burette with a acid and take note of the starting volume.
4. Slowly add to the alkaline, swirling until it turns white.
5. Note the final volume and repeat until you have 2 that are at most 0.2 cm2 apart.
6. Complete the titration calculations.

Question 3

what is a standard solution

Answer 3

A solution of an accurately known concentration

Question 4

What is the meniscus

Answer 4

The bottom of the bend of the solution that hits the line