Titration Curves

What is the pH at the equivalence point.

• The pH is approximately 5

• The pH is approximately 6

• The pH is approximately 8

• The pH is approximately 9

What is the endpoint of a titration

• Where the amount of acid and base are equal as shown by a colour change 
• Where there is no base
• When the volume of base in the burette is used up 
• When there is no acid

In which of the following reactions does H₂PO₄^- act as an acid?

• H₃PO₄ + H₂O --> H₃O⁺ + H₂PO₄^-
• H₂PO₄^- + H₂O --> H₃O⁺ + HPO₄^2-
• H₂PO₄^- + OH^- --> H₃PO₄ + O^2-
• The ion cannot act as an acid

Which of the following is NOT a strong base?

• Ca(OH)₂
• KOH
• NH₃
• Sr(OH)₂

Which type of titration is shown by this titration curve?

• Titration of a strong acid by a strong base 
• Titration of a weak acid by a strong base 
• Titration of a strong base by a strong acid 
• Titration of a weak base by a strong acid

The pH at the equivalence point of the titration of a strong acid with a strong base is usually:

• acidic 3.9
• acidic 4.5
• neutral 7.0
• basic 8.2

Which curve is produced by the addition of a 0.1 molL^-1 strong acid to a 0.1 molL^-1 weak base?

• A

• B

• C

• D

CH₃COOH is titrated with NaOH. Name the salt produced and its pH at the equivalence point.

• CH₃COONa, pH at 5

• CH₃COONa, pH at 7

• CH₃COONa, pH at 9

• NaCH₃COO, pH at 9