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

Students will be able to

Q1:

An unknown mass of CaCO3 was dissolved to make up a solution of 80 mL. Upon titration, it was found that 60 mL of 4 M HCl completely neutralized the CaCO3 solution.

What was the concentration of the CaCO3 solution?

What mass of CaCO3 was dissolved in the solution? Give your answer in grams.

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 Ba(OH)2 against 0.2 M of hydrochloric acid. Using the results in the table, and discounting any anomalies, determine the concentration of Ba(OH)2. Give your answer to 2 decimal places.

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