Graph #2: This is a graph of a reaction with a weak acid and strong base. It is

Question

Graph #2: This is a graph of a reaction with a weak acid and strong base. It is showing the titration of 40.00 mL of .1000M propanoic acid (HPr) with .1000M NaOH.

2. How many mL of acid are needed to reach equivalence point?

3. Calculate the pH after addition of 15.00 mL of base?

4. What is the pH after addition of 20.0 mL of base? What is special about this point? Label it on your graph.

5. Calculate the pH after addition of 30.00 mL of base.

6. Calculate the pH at equivalence point.

Graph #2: This is a graph of a reaction with a weak acid and strong base. It is showing the titration of 40.00 mL of .1000M propanoic acid (HPr) with .1000M NaOH. 2. How many mL of acid are needed to reach equivalence point? 3. Calculate the pH after addition of 15.00 mL of base? 4. What is the pH after addition of 20.0 mL of base? What is special about this point? Label it on your graph. 5. Calculate the pH after addition of 30.00 mL of base. 6. Calculate the pH at equivalence point.

Explanation / Answer

2). almost 40 ml

3)pH=4.5

4).pH=5

5).pH=5.5

6).pH=around 9

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