Introduction to Moles

What is a mole in chemistry?

• A small furry creature

• A unit representing 6.02 x 10²³of something

• An abbreviation for molecule

• A type of facial mark

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

What is the purpose of using scientific notation for Avogadro's number?

• To make it look more complicated

• To confuse students

• To make calculations harder

• To easily represent very large numbers

Match the following

• An atom, molecule, or formula unit

• Molar Volume

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

• Representative Particle

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

• Molar Mass

• 0^oC and 1 atm

• Avogadro's Number

• 6.02 x 10²³

• STP

Which has more molecules?

• mole H₂O

• mole Al(OH)₃

• mole NaCl

• They are all the same

Which has more molecules?

• 1 mole H₂O

• 1 mole Al(OH)₃

• 1 mole NaCl

• They are all the same

• 0.5 moles

• 0.86 moles

• 1 mole

• 1.5 moles

Tags

DOK Level 2: Skill/Concept

• 0.25 moles

• 0.5 moles

• 1 mole

• 2 moles

Tags

DOK Level 2: Skill/Concept

The mass of 1 mole is known as

• A mole

• Molar mass

• Percent Composition

• Grams

Tags

NGSS.HS-PS1-7