Question detail
What is the purpose of measuring mass loss in a reaction?
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. To determine the temperature change
- B. To find the concentration of reactants
- C. To track the amount of reactant used up
- D. To measure the pressure of the gas
Answer
To track the amount of reactant used up
Explanation
The correct answer is To track the amount of reactant used up. This answer directly addresses the question: What is the purpose of measuring mass loss in a reaction? 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 Practical Methods
Students often confuse collecting gas with measuring mass loss as methods for investigating reaction rates.
Clearly differentiate between the two methods: collecting gas involves measuring the volume of gas produced, while measuring mass loss involves tracking the decrease in mass of reactants.
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