Question detail

For Concentrations in mol/dm3 and titration calculations, which unit conversion answer best supports this Unit 4.3 objective: (chemistry only) (HT only) Use titration data to determine concentrations of strong acids and alkalis. (AT 1, AT 3, AT 8)?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Using concentrations of solutions in mol/dm3 (chemistry only) (HT only)

Question

A. 0.4 mol/dm3 - correct unit conversion for chemistry only
B. Wrong unit conversion: confuses chemistry only with a nearby Unit 4.3 idea
C. Wrong unit check: uses the wrong unit for Concentrations in mol/dm3 and titration calculations
D. Wrong calculation link: does not support (chemistry only) (HT only) Use titration data to determine concentrations of strong acids and alkalis. (AT 1, AT 3, AT 8)

Answer

The correct option is 0.4 mol/dm3 - correct unit conversion for chemistry only. The calculated answer is 0.4 mol/dm3.

Explanation

The correct option is 0.4 mol/dm3 - correct unit conversion for chemistry only. This uses Concentration in mol/dm3 because the objective is about (chemistry only) (HT only) Use titration data to determine concentrations of strong acids and alkalis. (AT 1, AT 3, AT 8). This unit conversion variant asks students to separate chemistry only from similar Unit 4.3 calculation steps. The reasoning belongs to Concentrations in mol/dm3 and titration calculations within Using concentrations of solutions in mol/dm3 (chemistry only) (HT only), so it should not be confused with nearby quantitative ideas such as mass, moles, concentration, yield, atom economy, or gas volume unless those are named in the objective. Use the focus term chemistry only to keep the answer aligned with AQA GCSE Chemistry 8462 Unit 4.3. The other options are weaker because they either use the wrong formula, the wrong unit, a vague relationship, or the wrong quantitative context.

Common mistake

Misunderstanding Titration Calculations

Students often confuse the volumes of acid and alkali used in titrations, leading to incorrect concentration calculations.

Always ensure to use the correct volume for each solution in the titration and double-check the balanced equation to find the correct mole ratio.

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For Concentrations in mol/dm3 and titration calculations, which option best supports this Unit 4.3 objective: (chemistry only) (HT only) Use titration data to determine concentrations of strong acids and alkalis. (AT 1, AT 3, AT 8)?