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CHEM 23.1: Acid-Base Titration

1.

Dilution Formula

M1V1=M2V2

2.

Preparation of any Experiment

Clean all glassware used with soap and water, then rinse with distilled water

3.

How much distilled water needed to prepare for 500mL volumetric flask?

3/4 of the entire 500ml volumetric flask or 375 ml

4.

Where should the HCl concentration be transferred before collecting from pipet?

a Beaker

5.

Where to transfer the HCl concentration inside the pipet?

To the volumetric flask

6.

How many minutes do you need to stir the volumetric flask with solution in circular motion?

2 minutes

7.

Why do we need to stir the volumetric flask with solution in circular motion?

To ensure that the solute and solvent has been incorporated properly

8.

What do you do after making the solution?

Store it in a reagent bottle

9.

After doing the experiment, what do you do with the glassware?

Clean with soap and water then rinse with distilled water

10.

Why do we boil the water to 100 degree celsius and cool it down back to 40 degree celcius?

To ensure the gases are dissolved (oxygen and carbon dioxide), sterilizes water and makes the temperature stable throughout the experiment

11.

Why do we need to rinse three times the beaker that was contaminated with NaOH?

To rinse the remaining NaOH present in the beaker