G10 Quiz, Mass and the moles

What is a mole?

• The standard “unit” for measuring the amount of particles in a substance.

• The abbreviation for the term molecule.

• The relative mass of one atom of an particular element.

• A dark, hairy spot on your arm.

What is molar mass?

• The mass of an atom
• The mass of a mole of atoms
• The mass of a cute little star-nosed mole
• When did we talk about this?

What are the units for molar mass?

• grams
• amu
• grams/mole
• liters

What is the numerical value of Avogadro's number?

• 60.22x10²³
• 6.022x10²³
• 6.022x10³²
• 6.022x10²⁴

Which would have more atoms?

• 1 mole of Li
• 1 mole of Au
• 1 mole of Si
• None, all are equal

Which substance would be heavier?

• 1 mol H

• 1 mol Li

• 1 mol Na

• 1 mol K

What is the mass of one mole of aluminum (Al)?

• 27 g

• 13 g

• 54 g

• 14 g

What is the mass of one mole of Helium?

• 4

• 1

• 2

• 6

An element's molar mass is equivalent to the atomic number of the element.

• true

• false

What is the molar mass of sodium?

• 11
• 22.990
• 45.98
• 3