by BlastRoom
Practice interpreting the mole as a count and converting with Avogadro's number.
#chemistry

20 questions
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Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.

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More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
A sample contains 1.00 mol of copper atoms, and another contains 1.00 mol of sulfur atoms. Which comparison is correct?
One sample contains 2.00 mol of NaCl formula units, and another contains 2.00 mol of CO2 molecules. What is true about the counts?
Which statement correctly treats the mole like a counting unit?
Why is Avogadro's number useful in lab chemistry?
A chemist says a sample has 0.750 mol of Fe atoms. What does the word mole tell you first?
If 1 mol of CO2 molecules and 1 mol of CH4 molecules are compared, which count is the same?
A balloon contains 3.01 × 1023 He atoms. How many moles of He atoms are present?
A container has 1.204 × 1024 molecules of O2. How many moles of O2 molecules are in the container?
A salt sample contains 6.02 × 1022 formula units of NaCl. How many moles of NaCl formula units is that?
A foil sample contains 2.408 × 1024 Al atoms. How many moles of Al atoms are present?
A flask contains 9.03 × 1023 molecules of NH3. How many moles of NH3 molecules are present?
How many molecules are in 0.250 mol of CO2?
A wire sample contains 3.00 mol of Cu atoms. How many Cu atoms are in the sample?
How many formula units are in 0.0500 mol of NaCl?
A sample contains 1.20 mol of H2O molecules. How many H2O molecules are present?
How many Ar atoms are in 2.50 mol of Ar?
How many oxygen atoms are present in 0.500 mol of CO2 molecules?
How many hydrogen atoms are in 2.00 mol of H2O molecules?
How many total atoms are in 1.00 mol of NH3 molecules?
How many chlorine atoms are in 0.250 mol of AlCl3 formula units?
Crack the passcode before the zombies get in.
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Mole-Mass Conversions
30 questions