The Mole Concept, Stoichiometry and Redox

Question 1

Define Relative Atomic Mass

Answer 1

The ratio of the average mass of one atom of the element to 1/12 the mass of one atom of carbon-12.

Question 2

Define Relative Isotopic Mass

Answer 2

The ratio of the mass of one atom of the isotope to 1/12 the mass of one atom of carbon-12.

Question 3

Define Relative Molecular Mass

Answer 3

The ratio of the average mass go one molecule of the substance to 1/12 the mass of one atom of carbon-12.

Question 4

Define Relative Formula Mass

Answer 4

The ratio of the average mass of one formula unit of the substance to 1/12 the mass of one atom of carbon-12.

Question 5

Define Mole

Answer 5

The amount of the substance which contains exactly 6.02 x 10²³ (Avogadro constant) elementary entities.

Question 6

Define Empirical Formula

Answer 6

The simple whole number ratio for the atoms of different elements in the compound.

Question 7

Define Molecular Formula

Answer 7

The actual number of atoms of the different elements in the compound.