Question detail
What is the purpose of making up a volumetric solution in a titration?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
A-level practical endorsement and required practical activities
Question
- A. To accurately measure the concentration of a solution
- B. To dilute the acid used in the reaction
- C. To increase the temperature of the solution
- D. To change the color of the solution
Answer
To accurately measure the concentration of a solution
Explanation
The correct option is To accurately measure the concentration of a solution. To accurately measure the concentration of a solution is the best answer because it directly supports the AQA A-Level Chemistry objective to required practical 1: make up a volumetric solution and carry out a simple acid-base titration. This reasoning is anchored to A-level required practical activities in A-level practical endorsement and required practical activities, and it separates titration from similar A-Level ideas rather than relying on a vague recall statement. Other options are weaker if they use the wrong evidence, calculation, mechanism, observation, unit, or conclusion for this subtopic.
Common mistake
Common Mistake in Titration Calculations
Students often forget to convert the volume of the solution from cm³ to dm³ when calculating concentration.
To fix this, remember that 1 dm³ = 1000 cm³. Use the formula for concentration: concentration (mol/dm³) = moles / volume (dm³). Convert the volume by dividing the cm³ value by 1000 before substituting into the formula. For example, if you have 25 cm³ of solution, convert it to dm³: 25 cm³ ÷ 1000 = 0.025 dm³. Then, if you have 0.1 moles of solute, the concentration would be: concentration = 0.1 moles / 0.025 dm³ = 4 mol/dm³. Keep the correction anchored to A-level required practical activities and the objective: Required practical 1: make up a volumetric solution and carry out a simple acid-base titration.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.