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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Calculate the formula mass of potassium chloride (KCl).
💡 Hint: Use the atomic masses from the periodic table.
Question 2
Easy
Which compound would you use molecular mass for?
💡 Hint: Think about whether the compound has distinct molecules.
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 formula mass of NaCl?
- 58.5 u
- 74.5 u
- 65.0 u
💡 Hint: Add the atomic weights of sodium and chlorine.
Question 2
True or False: Molecular mass applies to ionic compounds.
- True
- False
💡 Hint: Identify the type of compounds first.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the total formula mass of aluminum sulfate, Al2(SO4)3.
💡 Hint: Remember to calculate the formula mass of the sulfate ion first.
Question 2
If 10 g of an ionic compound has a formula mass of 80 g/mol, how many moles do you have?
💡 Hint: Use the formula: moles = mass / molar mass.
Challenge and get performance evaluation