Introduction to Moles

What is Avogadro's number?

• The number of molecules in a liter of water

• 602 followed by 21 zeros

• The speed of light

• The number of atoms in a gram

What can you have a mole of?

• Only atoms

• Only chemical substances

• Only molecules

• Anything, as long as it's 602 hexillion of it

Why do people often confuse 'mole' with 'molecule'?

• Because both involve chemistry

• Because they sound similar

• Because a mole is often used to count molecules

• Because a mole is a type of molecule

• 0.25 moles

• 0.5 moles

• 1 mole

• 2 moles

Tags

DOK Level 2: Skill/Concept

Which has more molecules?

• mole H₂O

• mole Al(OH)₃

• mole NaCl

• They are all the same

Which has more molecules?

• mole H₂O

• mole Al(OH)₃

• mole NaCl

• They are all the same

If a dozen = 12, how much does a mole equal?

• 18 g

• 184 g

• 0.5 moles

• 0.86 moles

• 1 mole

• 1.5 moles

Tags

DOK Level 2: Skill/Concept

Match the following

• An atom, molecule, or formula unit

• Avogadro's Number

• The mass of one mole of substance (g/mol)

• STP

• 6.02 x 10²³

• Representative Particle

• 0^oC and 1 atm

• Molar Volume

• The space occupied by 1 mole of a substance @ STP (22.4L)

• Molar Mass

The mass of 1 mole is known as

• A mole

• Molar mass

• Percent Composition

• Grams

Tags

NGSS.HS-PS1-7