Lesson: Titration Calculations Chemistry

In this lesson, we will learn how to use the results from a titration experiment to calculate unknown properties of a solution.

Lesson Plan

Students will be able to

recall how to calculate the number of moles from concentration and volume,
recall how to convert between mol/dm³ and g/dm³,
recall how to use balanced equations and ratios to calculate the number of moles of one reactant from the volume of another reactant,
calculate what volume of an acid is needed to neutralize a base and vice versa,
calculate the concentration of an acid from the volume of base that neutralizes it and vice versa,
use the results from a titration experiment to calculate an unknown concentration of a solution.

Lesson Video

Lesson Worksheet

Q1:

An unknown mass of was dissolved to make up a solution of 80 mL. Upon titration, it was found that 60 mL of 4 M completely neutralized the solution.

What was the concentration of the solution?

What mass of was dissolved in the solution? Give your answer in grams.

Q2:

What volume of a 3 mol/dm³ solution of ammonia would be needed to completely react with 70 cm³ of a 2 mol/dm³ solution of hydrochloric acid?

Q3:

The table below shows the results of titrating 0.02 dm³ 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.