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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Calculate the formula unit mass for sodium chloride (NaCl).
💡 Hint: Add the atomic mass of sodium and chlorine.
Question 2
Easy
What is the atomic mass of sodium (Na)?
💡 Hint: Use the periodic table for the atomic mass.
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 formula unit mass refer to?
- Molecular weight of molecules
- Atomic mass of ions
- Sum of atomic masses in an ionic compound
💡 Hint: Remember what an ionic compound is.
Question 2
True or False: Molecular mass applies only to ionic compounds.
- True
- False
💡 Hint: Recall the definitions of both terms.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the formula unit mass of potassium permanganate (KMnO4).
💡 Hint: Consider the mass for each atom and multiply when necessary.
Question 2
If 5 formula units of NaCl react with 3 formula units of CaCl2, what is the total formula unit mass before and after the reaction?
💡 Hint: Use formula unit mass to calculate the starting totals.
Challenge and get performance evaluation