Determine the percentage of washing soda in Acid & Base titration?

1: weight out 5g of washing soda Na2CO3 into beaker.

2: Dissolve the washing soda into 100ml beaker.

3: Transfer the dissolving solution into 250 volumetrick flask and mark up to the mark as the usual manner. invert the flask several times.

4: pipette 25 ml of washing soda into the conical flask.

5: add few drops of methy orange indicator to the washing soda solution in the conical flask.

6: fill the burette with hydrochloric acid solution following the protocol.

7: when filling the burette please ensure the burette is below the eye level.

Questions:

1) identify indicator that should not be used in this experiment and explain why?

2) why is it important to remove air bubbles from the burette tip and how is it achieved?

3) state 5 healthy safety that you would take when doing this experiment ?

4) what is the principle underpinning of this experimental procedure?

5) what are the major fingds of this experiment?

6) what were the possible errors of this experiment? how could we improve in the future?

7) what are the significances of this experiment?