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Chemical Quantities in Reactions Quiz
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Chemical Quantities in Reactions Quiz

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Questions and Answers

What is the value of Avogadro’s number?

  • $7.022 \times 10^{23}$
  • $8.022 \times 10^{23}$
  • $5.022 \times 10^{23}$
  • $6.022 \times 10^{23}$ (correct)
  • What is the molar mass of lithium carbonate, Li2CO3?

  • 90.08 g/mol (correct)
  • 42.39 g/mol
  • 73.89 g/mol
  • 60.03 g/mol
  • How many moles of CO2 are present in 5.00 grams of CO2?

  • 0.10 mol (correct)
  • 0.15 mol
  • 0.05 mol
  • 0.20 mol
  • What is the mass of 2.50 moles of iron (Fe)?

    <p>279.75 g</p> Signup and view all the answers

    How many atoms are present in 0.75 moles of carbon (C)?

    <p>$3.01 \times 10^{23}$</p> Signup and view all the answers

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