Mole Concept Practice

Which of the following statements regarding the mole is correct?

• A mole is a counting unit equal to 6.02 x 1023 particles.

• The number of particles in a mole is known as Avogadro’s number.

• 1 mole = Avogdro's number

• all of the above

What is the SI unit that refers to the number of particles contained in a substance?

Tags

NGSS.HS-PS1-7

How many atoms of iodine are in a mole of iodine?

• 53

• 63.55g

• 126.9

• 6.02 x 10²³

Which of the following statements regarding the mole is NOT correct?

• A mole is a counting unit

• Equal to 6.02 x 10²³ particles.

• The concept of mole is similar to the concept of dozen

• none of the above

Which has more molecules?

• mole H₂O

• mole Al(OH)₃

• mole NaCl

• They are all the same

• 0.5 moles

• 0.86 moles

• 1 mole

• 1.5 moles

Tags

DOK Level 2: Skill/Concept

Which has more molecules?

• mole H₂O

• mole Al(OH)₃

• mole NaCl

• They are all the same

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

Match the following

• 0^oC and 1 atm

• Avogadro's Number

• An atom, molecule, or formula unit

• Molar Mass

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

• Molar Volume

• 6.02 x 10²³

• STP

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

• Representative Particle

If you have 3 moles of sodium chloride (NaCl), how many formula units do you have?