1.7.4 - Formula Mass
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Practice Questions
Test your understanding with targeted questions
Calculate the formula mass of potassium chloride (KCl).
💡 Hint: Use the atomic masses from the periodic table.
Which compound would you use molecular mass for?
💡 Hint: Think about whether the compound has distinct molecules.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula mass of NaCl?
💡 Hint: Add the atomic weights of sodium and chlorine.
True or False: Molecular mass applies to ionic compounds.
💡 Hint: Identify the type of compounds first.
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Challenge Problems
Push your limits with advanced challenges
Calculate the total formula mass of aluminum sulfate, Al2(SO4)3.
💡 Hint: Remember to calculate the formula mass of the sulfate ion first.
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.
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