Question detail

Case 69 exam-language. Which response would earn credit for the calculation method? Focus on Rearrange concentration equations in Concentrations in mol/dm3 and titration calculations, not on a neighbouring Unit 4.3 idea.

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. Case 69 exam-language: Show formula, substitution, calculation, final answer, and unit for Rearrange concentration equations
B. Case 69 exam-language: Write only the final answer with no working (Concentrations in mol/dm3 and titration calculations)
C. Case 69 exam-language: Describe the practical method instead of the calculation relationship (Rearrange concentration equations)
D. Case 69 exam-language: Quote the topic title without applying it to the data (Using concentrations of solutions in mol/dm3 (chemistry only) (HT only))

Answer

The correct option is Case 69 exam-language: Show formula, substitution, calculation, final answer, and unit for Rearrange concentration equations.

Explanation

The correct option is Case 69 exam-language: Show formula, substitution, calculation, final answer, and unit for Rearrange concentration equations. It supports the approved learning objective by keeping the method tied to Rearrange concentration equations in Concentrations in mol/dm3 and titration calculations. The other options are incorrect because they either use the wrong quantitative relationship, lose the required unit, confuse coefficients with subscripts, or report an answer without a complete worked method.

Common mistake

Misunderstanding Rearrangement

Students often forget to isolate the variable they need when rearranging concentration equations, leading to incorrect formulas.

Practice isolating the variable step-by-step, ensuring to perform the same operation on both sides of the equation.

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For Concentrations in mol/dm3 and titration calculations, which ratio reasoning answer best supports this Unit 4.3 objective: (chemistry only) (HT only) Rearrange concentration equations. (MS 3b)?