Intro to the Mole and Molar Mass

Which of the following statements regarding the mole is INCORRECT?

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

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

• A mole of particles of an element is numerically equal to the atomic mass of the element.

• none of the above

Tags

NGSS.HS-PS1-7

The mass of one mole of an element is equal to

• its atomic number from the periodic table, but in amus.

• its atomic mass from the periodic table, but in amus.

• its atomic mass from the periodic table, but in grams.

• its atomic number from the periodic table, but in grams.

What is the molar mass of table salt (NaCl)?

• 70 amu

• 35 g/mol

• 22 g/mol

• 58 g/mol

Tags

NGSS.HS-PS1-7

Molar mass is the

• atomic mass of atoms in a compound

• sum of the atomic masses of all atoms in acompound

• amount of moles in a compound

• 180 g/mol

• 160 g/mol

• 342 g/mol

• 198 g/mol

• 28.01 g/mol

• 32.01 g/mol

• 44.01 g/mol

• 48.01 g/mol

Tags

DOK Level 2: Skill/Concept

• 180.18 g/mol

• 160.16 g/mol

• 200.20 g/mol

• 220.22 g/mol

Tags

DOK Level 2: Skill/Concept

• 59.5 g/mol

• 95 g/mol

• 120 g/mol

• 145 g/mol

• 44 g

• 88 g

• 132 g

• 176 g

Tags

DOK Level 2: Skill/Concept

• 16 g/mol

• 18 g/mol

• 20 g/mol

• 22 g/mol

Tags

DOK Level 2: Skill/Concept