Question detail
How many moles are in 44 grams of carbon dioxide (CO2)?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Use of amount of substance in relation to masses of pure substances
Question
- A. 1 mol
- B. 2 mol
- C. 0.5 mol
- D. 3 mol
Answer
1 mol
Explanation
The relative formula mass of carbon dioxide (CO2) is 44 g/mol. Therefore, 44 g of CO2 corresponds to 1 mole.
Common mistake
Confusing Mass and Moles
Students often confuse mass (in grams) with the number of moles when calculating the amount of substance.
Always remember to use the formula: moles = mass / relative formula mass, ensuring you convert mass to the correct unit before calculation.
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