Question detail
A reaction produces 0.5 moles of carbon dioxide (CO2). Calculate the mass of CO2 produced. The relative formula mass (Mr) of CO2 is 44 g/mol.
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At a glance
Question
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exam_style
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Topic
Use of amount of substance in relation to masses of pure substances
Question
A reaction produces 0.5 moles of carbon dioxide (CO2). Calculate the mass of CO2 produced. The relative formula mass (Mr) of CO2 is 44 g/mol.
Answer
22 g
Explanation
This question assesses the ability to calculate mass from moles using the formula mass = moles x Mr. Understanding this relationship is crucial for quantitative chemistry.
Common mistake
Confusing Avogadro's Constant
Students often confuse the Avogadro constant with the number of particles in a specific mass of a substance instead of understanding it as a fixed number of particles in one mole.
Remember that Avogadro's constant (6.02 x 10^23) represents the number of atoms, molecules, or ions in one mole of any substance, regardless of its mass.
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