Question

Titration: Acids and Bases

2. How can you determine which acid is diprotic?

3. using the answers to questions one and two, which acid is diprotic?

4. Which base has more hydroxide ions per molecule?

Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20 mL Base 2 50 mL 34 mL 16 mL 5:4

Answer 1

2.) By plotting the volume of base added vs pH curve we can predict if the given acid is monoprotic or diprotic .

If two sudden change in the pH is observed two times in the curve then the Acid is diprotic. Also we can do conductometric titrations and plot the conductivity vs volume of base added curve if the Two dips(points where conductivity start to increase or decrease) in the conductivity plot then diprotic acid otherwise monoprotic acid.