1.8 - Mole Concept and Molar Masses
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Practice Questions
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Calculate the molar mass of CO2.
💡 Hint: Remember to sum the atomic masses.
Define a mole.
💡 Hint: Think about how we count other items like dozens.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the mole defined as?
💡 Hint: This number is important in counting particles.
Molar mass is expressed in what unit?
💡 Hint: Think about mass measurements in grams.
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Challenge Problems
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If a chemist has 100 grams of sodium chloride, find the number of moles and describe its significance in a chemical reaction.
💡 Hint: Use the molar mass to convert grams into moles.
A sample of carbon dioxide exhibits 44 grams in a reaction. Determine the moles present and the stoichiometric implications for a reaction with another 46 grams of water.
💡 Hint: Recall the ratio of reactants in a balanced equation.
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