This lesson includes 14 additional questions and 46 additional question variations for subscribers.

# Lesson Worksheet: Titration Calculations Chemistry

In this worksheet, we will practice using the results from a titration experiment to calculate unknown properties of a solution.

**Q2: **

What volume of a 3 mol/dm^{3} solution of ammonia would be needed to completely react with 70 cm^{3} of a 2 mol/dm^{3} solution of hydrochloric acid?

**Q3: **

The table below shows the results of titrating 0.02 dm^{3}
of barium hydroxide against
0.2 M of hydrochloric acid.
Using the results in the table, and discounting any anomalies, determine the concentration of .
Give your answer to 2 decimal places.

Volume of Solution (mL) | Titration 1 | Titration 2 | Titration 3 |
---|---|---|---|

Initial Reading | 0.0 | 10.0 | 0.1 |

Final Reading | 61.3 | 83.4 | 61.8 |

Volume Added | 61.3 | 73.4 | 61.7 |

**Q4: **

20 cm^{3} of an unknown concentration of acetic acid was placed in a conical flask and titrated against 2 M of sodium hydroxide. The change in pH as sodium hydroxide was added was recorded and is shown below.

What approximate volume of sodium hydroxide neutralized the acetic acid?

- A3.0 cm
^{3} - B4.0 cm
^{3} - C7.5 cm
^{3} - D12.0 cm
^{3} - E8.2 cm
^{3}

What was the concentration of the acetic acid solution?

**Q5: **

A student sets up an experiment to measure the pH of a solution during titration.
A 50 cm^{3}
solution of
of unknown concentration is neutralized by the addition of
1 M .
The results of the experiment are shown in the graph below.

What is the approximate volume of required to neutralize the sodium hydroxide solution?

- A70 cm
^{3} - B21 cm
^{3} - C55 cm
^{3} - D40 cm
^{3} - E33 cm
^{3}

What is the concentration of the sodium hydroxide solution?

**Q6: **

A student performed a titration and recorded the volume of acid needed to neutralize a base. The experiment was repeated five times and the results were collected in a table. Which result of repeated titration can be considered an anomaly?

Titration | 1 | 2 | 3 | 4 | 5 |
---|---|---|---|---|---|

Volume of Acid (cm^{3}) | 17.8 | 17.9 | 16.8 | 17.6 | 18.0 |

**Q7: **

A student attempts to determine the concentration of citric acid in an orange. 20 mL of orange juice is titrated against 0.1 M of sodium hydroxide. The following is an equation for the chemical reaction: The student finds that 6.0 mL of sodium hydroxide neutralizes the citric acid. What is the concentration of citric acid in the orange juice? Give your answer in millimoles per cubic decimeter.

**Q8: **

A titration experiment is performed 7 times. The first titration is used as a rough estimate of where the end point may be, whilst the remaining six titrations are used to try and provide an accurate measurement. What is the average titer volume? Give your answer to 2 decimal places.

Titration | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
---|---|---|---|---|---|---|---|

Volume Added (cm^{3}) | 21.8 | 19.2 | 19.4 | 17.6 | 19.1 | 18.9 | 20.6 |

**Q9: **

A titration is set up to determine the concentration of an ammonia solution.
75 cm^{3} of ammonia was placed in a conical flask and a few drops of methyl orange
indicator were added. A solution that was
0.4 M sulfuric acid was then titrated into
the conical flask. The color of the solution near the end point is shown below.

What volume of sulfuric acid completely neutralized the ammonia solution?

What was the concentration of the ammonia solution? Give your answer to 4 decimal places.

**Q10: **

Calculate the concentration of 0.450 mol/L
in grams per cubic decimeter (g/dm^{3}). Give your answer to 1 decimal place.