Moles

10 Questions | Total Attempts: 45

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Disorder Quizzes & Trivia

Understanding the Mole Concept


Questions and Answers
  • 1. 
    Define a mole?
  • 2. 
    What is Avogadro's number?
  • 3. 
    How many moles of atoms are in 45.0g of gold? 
  • 4. 
    In photosynthesis, plants use energy from the sun to combine carbon dioxide and water, forming glucose and  oxygen. How many moles of glucose are 90.0g of glucose?
  • 5. 
    Milk of magnesia, Mg(OH)2, is used to neutralize stomach acid. How many moles are in 26.89g of magnesium hydroxide, Mg(OH)2?
  • 6. 
    How many moles are in 17.7 g of  KMnO4?
    • A. 

      0.122 grams of KMnO4

    • B. 

      0.122 atoms of KMnO4

    • C. 

      0.122 formula units of KMnO4

    • D. 

      0.112 mol KMnO4

  • 7. 
    What is the molar mass of water? (Whole number with correct units)
  • 8. 
    • A. 

      9.96 e-18 moles of copper

    • B. 

      6,000,000 atoms of copper

    • C. 

      1 mole of copper atoms

    • D. 

      6,000,000 moles of copper atoms

  • 9. 
    How many atoms of gold are in 1.00 gram of gold?
  • 10. 
    How many molecules of water are in 18 grams of water?