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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the atomic mass of oxygen?
💡 Hint: Refer to the periodic table for the value.
Question 2
Easy
Define average atomic mass.
💡 Hint: Think about isotopes and their natural prevalence.
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 unit is used to express atomic mass?
- Gram
- Kilogram
- Atomic Mass Unit (amu)
💡 Hint: Remember the standard comparison used for atomic mass.
Question 2
True or False: The average atomic mass of an element accounts for its isotopes.
- True
- False
💡 Hint: Think about the definition of average atomic mass.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a sample that contains 90% Cl-35 and 10% Cl-37, calculate the average atomic mass of chlorine in this sample.
💡 Hint: Use the concept of weighted average involving percentages.
Question 2
If the molecular mass of a compound is found to be 82 g/mol and its formula is C3H6, calculate the average atomic mass of carbon and hydrogen based on its composition.
💡 Hint: Set up an equation using known atomic masses to find an unknown.
Challenge and get performance evaluation