Question detail
A 0.120 mol solution is prepared by dissolving the solute in 600 mL of water. What is the concentration in mol dm⁻³?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Rate of reaction
Question
- A. 0.20 moldm³
- B. 0.20 mol/dm³
- C. 0.20 mol/dm3
- D. A related idea from the topic but not the answer to this question
Answer
0.20 moldm³
Explanation
The correct answer is 0.20 moldm³. This answer directly addresses the question: A 0.120 mol solution is prepared by dissolving the solute in 600 mL of water. What is the concentration in mol dm⁻³? It matches the approved Chemistry 8462 learning objective and the linked subtopic. The other options are incorrect because they either change the rate, catalyst, reversible reaction, equilibrium, or graph context, or they do not answer the exact point being tested.
Common mistake
Misunderstanding Concentration Effects
Students often think that increasing concentration only increases the amount of reactants without affecting the rate of reaction.
Emphasize that increasing concentration increases the number of particles in a given volume, leading to more frequent collisions and thus a higher reaction rate.
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