Question detail
What volume of gas at room temperature and pressure is produced from 0.75 moles of gas?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Use of amount of substance in relation to volumes of gases (chemistry only) (HT only)
Question
What volume of gas at room temperature and pressure is produced from 0.75 moles of gas?
Answer
18 dm3 This answer should be checked against the named quantitative relationship, the balanced equation where relevant, and the final unit required by the question.
Explanation
This question assesses the ability to apply the concept of gas volume per mole. The calculation confirms the understanding of how to derive gas volume from moles. In exam marking, the important steps are to identify the correct relationship, substitute or interpret the values carefully, keep units consistent, and avoid mixing this calculation with neighbouring Unit 4.3 methods.
Common mistake
Volume Calculation Mistake
Students often forget that one mole of gas occupies 24 dm3 at room temperature and pressure, leading to incorrect volume calculations.
Always remember to use the fact that one mole of any gas at room temperature and pressure occupies 24 dm3 when calculating gas volumes.
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