Quiz 3

Question 1

Formula mass

Answer 1

The sum of atomic masses (in amu) in a formula unit of an ionic compound

For ANY IONIC COMPOUND: formula mass (amu) = molar mass (g)

Question 2

Molecular mass

Answer 2

The sum of the atomic masses (in amu) in a molecule

For ANY MOLECULE: Molecular mass (amu) = molar mass (g)

Question 3

Atomic mass

Answer 3

The mass of an atom in atomic mass units (amu)

For any element: Atomic mass (amu) = molar mass (g)

Question 4

Mole

Answer 4

The amount of a substance that contains as many elementary entities as there are atoms in exactly 12.00 grams of C = 6.022x10^23 (Avogadro’s number)