🎓 IB Exam Prep

What does "molar mass" represent?

A The mass of one atom
B The mass of one mole of a substance in grams
C The volume of a gas
D The number of molecules

✓ Correct Answer: Option B

Molar mass is the mass (in grams) of one mole of a substance. For example, water (H₂O) has a molar mass of 18 g/mol.

💡 Why is B) the correct answer?

The correct answer to the question "What does "molar mass" represent?" is Option B: The mass of one mole of a substance in grams.

The other options — A) The mass of one atom, C) The volume of a gas, D) The number of molecules — are incorrect for this IB Exam Prep question. As explained above: Molar mass is the mass (in grams) of one mole of a substance. For example, water (H₂O) has a molar mass of 18 g/mol.

📚 About This IB Exam Prep Practice Question

This 2-level IB Exam Prep question from the Chemistry topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free IB Exam Prep practice test or use flashcards for spaced repetition review.

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