Understanding Moles, Representative Particles, and Avogadro's Number

What is Avogadro's number?

• 12.04 x 10^23 particles

• 6.02 x 10^22 particles

• 3.01 x 10^23 particles

• 6.02 x 10^23 particles

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NGSS.HS-PS1-5

NGSS.HS-PS1-7

For ionic compounds, what are the representative particles?

• Molecules

• Atoms

• Formula units

• Electrons

In one mole of any element, how many atoms are present?

• 3.01 x 10^23 atoms

• 6.02 x 10^23 atoms

• 12.04 x 10^23 atoms

• 6.02 x 10^22 atoms

What is the representative particle for a covalent compound?

• Formula unit

• Atom

• Molecule

• Ion

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NGSS.MS-PS1-1

How many moles are there in 3.53 moles of aluminum?

• 1.76

• 2.11

• 3.53

• 6.02 x 10^23

What is the first step in solving a problem involving the conversion of moles to representative particles?

• Set up the conversion factor

• Identify the representative particle

• Write the conversion factor

• Identify the compound

What technique is used to convert between moles and representative particles?

• Quantitative analysis

• Dimensional analysis

• Qualitative analysis

• Theoretical analysis

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NGSS.HS-PS1-7

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NGSS.HS-PS1-7

• 1 mole

• 2 moles

• 0.5 moles

• 4 moles

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NGSS.HS-PS1-7