Question detail
What is the volume of 48 g of oxygen gas (O2) at room temperature and pressure? (Relative formula mass of O2 = 32 g/mol)
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 is the volume of 48 g of oxygen gas (O2) at room temperature and pressure? (Relative formula mass of O2 = 32 g/mol)
Answer
48 dm3
Explanation
This question assesses the ability to calculate gas volume from mass using the relative formula mass. It requires converting mass to moles and then using the volume per mole.
Common mistake
Incorrect Unit Usage
Students often forget to convert volumes from cm3 to dm3 when substituting values into gas volume equations.
Always check if the volume is in dm3; if it's in cm3, convert it by dividing by 1000 before substituting into the equation.
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