Acid Titrations and pH

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

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

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

The pH of the solution when the buffer solution in the flask contains equal concentrations of weak acid and conjugate base is

• 2.86

• 4.75

• 8.77

• 12.01

If phenolphthalein turns bright pink, it indicates

• an acid 
• a base
• a neutral

From the list of indicators shown, choose one that is suitable for this reaction.

• Phenolphthalein
• Bromophenol Blue
• Bromocresol Green
• Any indicator can be used and an accurate result will be obtained.

Which acid base pair produce the titration curve shown below?

• HCI + KOH
• HCI + NH₃
• CH₃COOH + KOH
• CH₃COOH + NH₃

Which acid base pair will produce a pH jump from 2.7 to 7.8 at equivalent point?

• HCI with CH₃COOH
• HCI with NaOH
• CH₃COOH with NaOH
• HCI with NH₃