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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Calculate the atomic mass of neon (Ne) given that it has an atomic mass of 20.18.
💡 Hint: Refer to the periodic table for atomic masses.
Question 2
Easy
What is the molecular mass of carbon dioxide (CO2)?
💡 Hint: Remember to sum the contributions of each atom.
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 atomic mass primarily determined relative to?
- Hydrogen
- Carbon-12
- Oxygen
💡 Hint: Think about the periodic table and how elements are standardized.
Question 2
True or False: The molecular mass of NaCl is the same as its formula mass.
- True
- False
💡 Hint: Consider how ions in ionic compounds are treated.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider an element with isotopes of 90% 12C and 10% 13C. Calculate its average atomic mass.
💡 Hint: Remember, multiply the abundance by the respective atomic mass.
Question 2
If 4 moles of sulfuric acid (H2SO4) are reacted, how many grams of the acid are involved?
💡 Hint: Use the formula mass you’ve calculated.
Challenge and get performance evaluation