ACID BASE TITRATION PROBLEMS

1. 25 mL of HCl(aq) is titrated with 0,10 M NaOH(aq). If the
volume of NaOH needed is 30 mL,

a. Write down the ionic equation.
b. What is the name of this reaction? Give the reason.
c. Calculate [HCl]
d. Calculate the pH before titration.
e. Calculate the pH of the equivalent point.
f. Determine the indicator used in this titration.
g. When the volume of NaOH(aq) which titrated to HCl(aq) is 15 mL, calculate the pH of solution.
h. If the volume of NaOH(aq) which titrated to HCl (aq) is 50 mL, calculate the pH of solution.
i. Draw the curve of the titration above.

2. 25 mL of NaOH(aq) is titrated with 0,10 M HCl(aq). If the
volume of acid needed is 20 mL,

a. Calculate [NaOH]
b. Calculate the pH before titration.
c. Calculate the pH of the equivalent point.
d. Determine the indicator used in this titration.
e. When the volume of HCl(aq) which titrated to the base is 15 mL, calculate the pH of solution.
f. If the volume of HCl(aq) which titrated to the base is 25 mL, calculate the pH of solution.
g. Draw the curve of the titration above.

3. 25 mL of CH3COOH(aq) is titrated with 0,10 M NaOH(aq). If the volume of NaOH needed is 30 mL,

a. Write down the ionic equation.
b. Calculate [CH3COOH]
c. Calculate the pH before titration.
d. Explain what happens at the equivalent point. Write down the ionic equation.
e. Calculate the pH of the equivalent point.
f. Determine the indicator used in this titration.
g. When the volume of NaOH(aq) which titrated to the acid is 15 mL, calculate the pH of solution.
h. If the volume of NaOH(aq) which titrated to the acid is 50 mL, calculate the pH of solution.
i. Draw the curve of the titration above.