The Mole

What is the definition for Avogadro's number?

• number of grams per one mole of a substance

• whole number ratio that is a multiple of a chemical formula

• simplest, whole number ratio of a chemical formula

• 6.02 x 10^23 particles per one mole of a substance

Tags

NGSS.HS-PS1-7

How many moles are present in 32.3 grams of carbon dioxide (CO₂)?

• 44.01 moles

• 1421.52 moles

• 32.3 moles

• 0.73 moles

Determine the number of atoms in 3.54 mol S.

• 1.70 x 10²³

• 1.70 x 10²⁴

• 2.13 x 10²³

• 2.13 x 10²⁴

Which would have more atoms?

• mole of Li

• mole of Au

• mole of Si

• None, all are equal

Match the following

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

• Molar Volume

• An atom, molecule, or formula unit

• Representative Particle

• 6.02 x 10²³

• STP

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

• Molar Mass

• 0^oC and 1 atm

• Avogadro's Number

How many atoms are in 2 moles of helium (He)?

• 18 g

• 36 g

• 72 g

• 144 g

The mass of 1 mole is known as

• A mole

• Molar mass

• Percent Composition

• Grams

Tags

NGSS.HS-PS1-7

• 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