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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Calculate the molecular mass of carbon dioxide (CO₂).
💡 Hint: Look up atomic masses of carbon and oxygen.
Question 2
Easy
What is the formula unit mass of sodium chloride (NaCl)?
💡 Hint: Sum the masses of Na and Cl.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the molecular mass of H₂O?
- 18u
- 20u
- 22u
💡 Hint: Add masses of two hydrogens and one oxygen.
Question 2
True or False: Molecular mass is the sum of atomic masses in a formula unit.
- True
- False
💡 Hint: Consider the definitions of each term.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the molecular mass of glucose (C₆H₁₂O₆) and explain its significance in biological systems.
💡 Hint: Break the calculation into parts: nutrients influence energy availability.
Question 2
Determine the formula unit mass for aluminum chloride (AlCl₃) and discuss its uses in industry.
💡 Hint: Think about how certain substances are derived in industry through reactions.
Challenge and get performance evaluation