Notes & Practice: Mole, Molar Mass, and Conversions

Multiple Choice

What is Avogadro's Number? (measures molecules and atoms)

• 6.02 x 10²³

• 3.145

• it changes

• 1

Multiple Choice

How many atoms are in 1 mole of Iodine (I)?

• 6.022 x 10²³

• 4.022 x 10²³

• 6.022 x 10²⁵

• 4.022 x 10²⁵

Multiple Choice

How many moles are in 6.02 x 10²³ molecules of H₂O?

• 1 mole

• 2 moles

• 6.02 moles

• 602000000000000000000000 moles

Multiple Choice

Which has the most particles?

• 1 mole H₂

• 1 mole Na¹⁺

• 1 mole Al(OH)₃

• These are all the same

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What is the molar mass of Cl₂?

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Calculate the molar mass of NaCl.

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Calculate the molar mass of water (H₂O).

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Calculate the molar mass of KMnO₄

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Calculate the molar mass of Li₂CO₃

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Calculate the molar mass of Fe₃(PO₄)₂

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72 g of NaCl is equal to how many moles?

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Find the mass of 3.8 mol of H₂O

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Find the mass of 5.8 mol of KMnO₄

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How many moles are in a 5.6 gram sample of Fe₃(PO₄)₂?