Molar Mass and the Mole

What is a mole?

• The standard “unit” for measuring the amount of particles in a substance.

• The abbreviation for the term molecule.

• The relative mass of one atom of an particular element.

• A dark, hairy spot on your arm.

What is the numerical value of Avogadro's number?

• 60.22x10²³
• 6.022x10²³
• 6.022x10³²
• 6.022x10²⁴

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NGSS.HS-PS1-7

How many atoms are found in 1 mol of Xenon atoms?

• 6.02 x 10²³

• 3.01 x 10²³

• 1.204 x 10²⁴

• 6.02 x 10²⁴

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Which would have more atoms?

• 1 mole of Li
• 1 mole of Au
• 1 mole of Si
• None, all are equal

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What is molar mass?

• The mass of an atom
• The mass of a mole of atoms
• The mass of a cute little star-nosed mole
• When did we talk about this?

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Molar mass is in units of ________.

• g

• g/mol

• mol

• mol/g

Which substance would be heavier?

• 1 mol H

• 1 mol Li

• 1 mol Na

• 1 mol K

What is the mass of one mole of aluminum (Al)?

• 27 g

• 13 g

• 54 g

• 14 g

What is the molar mass of sodium (Na)?

• 11 g/mol

• 23 g/mol

• 1 g/mol

• 3 g/mol

Which represents the greatest mass of sulfur?

• 1 gram of sulfur
• 1 molecule of sulfur
• 0.5 mole of sulfur
• 6.02 x 10²³ atoms of sulfur