A student does three titrations with dilute hydrochloric acid and potassium hydroxide solution.
Complete the equation to show the products formed during this reaction.
potassium hydroxide + hydrochloric acid → potassium ______ + _______
Some of the apparatus the student uses is shown below.
Name the piece of equipment the student will use to measure out the 25.0 cm3 of potassium hydroxide solution.
In her first titration the student measures the initial volume of hydrochloric acid in the burette.
She slowly adds the acid until the potassium hydroxide is just neutralised.
She then measures the volume of the hydrochloric acid again.
Describe how she can tell when the potassium hydroxide solution is just neutralised.
Look at the diagrams. They show parts of the burette during the first titration.
Here is the student’s results table.
Titration number | 1 | 2 | 3 |
final reading in cm3 |
| 37.5 | 32.1 |
initial reading in cm3 |
| 20.4 | 15.0 |
titre (volume of acid added) in cm3 |
| 17.1 | 17.1 |
Complete the table by recording the burette readings from the diagrams.
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