Challenge 8.3 - One Step Mole Conversions

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Quizzes Created: 1 | Total Attempts: 335
| Attempts: 335
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  • 1/8 Questions

    What is the mass of 4.65 moles of oxygen gas? (O2)

    • 149 g of O2
    • 4.65 g of O2
    • 0.145 g of O2
    • 0.15 g of O2
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About This Quiz

Challenge 8.3 - One Step Mole Conversions tests understanding of mole conversion principles in chemistry, focusing on calculations involving mass and moles of various compounds like O2, CO2, CF4, Al2O3, NaCl, and SrCl2.

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  • 2. 

    How many atoms are in 7.86 moles of sodium chloride?

    • 459 atoms of NaCl

    • 4.73 x10^24 atoms of NaCl

    • 1.31 x 10^-23 atoms of NaCl

    • 6.02 x10^23 atoms of NaCl

    Correct Answer
    A. 4.73 x10^24 atoms of NaCl
    Explanation
    option 1 is wrong because you did not use the right conversion factor
    option 2 is right
    option 3 is wrong because you flipped your conversion factor
    option 4 is wrong because it is avogadro's number only

    Rate this question:

  • 3. 

    How many liters of carbon dioxide are in 63.5 moles of CO2?

    • 1.44 L CO2

    • 1420 L CO2

    • 3.93 x 10^25 L CO2

    • 2490 L CO2

    Correct Answer
    A. 1420 L CO2
    Explanation
    option 1 is wrong because you flipped your conversion factor
    option 2 is right
    option 3 is wrong because you used avogadros number
    option 4 is wrong because you used the molar mass of CO2

    Rate this question:

  • 4. 

    How many moles of carbon dioxide are in 22.5 grams of CO2? 

    • 990 moles of CO2

    • 22.5 moles of CO2

    • 0.511 moles of CO2

    • 44.01 moles of CO2

    Correct Answer
    A. 0.511 moles of CO2
    Explanation
    option 1 is wrong because you flipped your conversion factor
    option 2 is wrong because you did not convert
    option 3 is correct
    option 4 is wrong because that is the molar mass of CO2

    Rate this question:

  • 5. 

    A chemists needs 3.52 moles of aluminum oxide, Al2O3, for a particular experiment. How many grams of Al2O3 should she weight out?

    • 359 g of Al2O3

    • 0.0345 g of Al2O3

    • 102 g of Al2O3

    • 3.52 g of Al2O3

    Correct Answer
    A. 359 g of Al2O3
    Explanation
    option 1 is right
    option 2 is wrong because you flipped your conversion factor
    option 3 is wrong because it is the molar mass of Al2O3
    option 4 is wrong because you did not convert

    Rate this question:

  • 6. 

    How many moles of carbon tetrafluoride are in 176 grams of CF4?

    • 88.01 moles of CF4

    • 176 moles CF4

    • 15500 moles of CF4

    • 2.00 moles of CF4

    Correct Answer
    A. 2.00 moles of CF4
    Explanation
    option 1 is wrong because that is the molar mass of CF4
    option 2 is wrong because you did not covert
    option 3 is wrong because you flipped your conversion factor
    option 4 is right

    Rate this question:

  • 7. 

    How many moles of liquid dihydrogen monoxide are there when you have 253 L of dihydrogen monoxide?

    • 11.3 moles of H2O

    • 5670 moles of H2O

    • 4.20 x 10^-22 moles of H2O

    • 14.0 moles of H2O

    Correct Answer
    A. 11.3 moles of H2O
    Explanation
    option 1 is right
    option 2 is wrong because you flipped your conversion factor
    option 3 is wrong because you use avogadros number
    option 4 is wrong because you use molar mass

    Rate this question:

  • 8. 

    A chemist has 5.69 x 10^26 molecules of strontium chloride. How many moles of strontium chloride do they have?

    • 158.52 moles of strontium chloride

    • 6.02 x 10^23 moles of strontium chloride

    • 3.43 x 10^50 moles of strontium chloride

    • 945 moles of strontium chloride

    Correct Answer
    A. 945 moles of strontium chloride
    Explanation
    Option 1 is wrong because that is the molar mass of SrCl2
    option 2 is wrong because that is avogadros number
    option 3 is wrong because you flipped your conversion factor
    option 4 is right

    Rate this question:

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 24, 2016
    Quiz Created by
    Cbrammell
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