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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Determine the empirical formula for a compound with 50% sulfur and 50% oxygen.
💡 Hint: Consider the ratio of the two elements.
Question 2
Easy
If a compound is 25% nitrogen and 75% oxygen, what is its empirical formula?
💡 Hint: Convert percentage to mole then find the simplest ratio.
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 does an empirical formula represent?
- Actual number of atoms
- Simplest ratio of atoms
- Compound's molar mass
💡 Hint: Think about the formula's representation.
Question 2
True or False: The molecular formula can provide more detail than the empirical formula.
- True
- False
💡 Hint: Consider what each formula indicates.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A compound has 11.19 g of sodium, 8.40 g of chlorine, and has a molar mass of 58.5 g/mol. Determine its empirical and molecular formula.
💡 Hint: Convert the mass of each element to moles and find the simplest ratio.
Question 2
For a compound composed of 40% carbon and 60% hydrogen that has a molar mass of 30 g/mol, determine the empirical and molecular formula.
💡 Hint: Calculate moles and then relate the empirical formula to the molar mass.
Challenge and get performance evaluation