Module 2

Question 1

Define relative isotopic mass.

Answer 1

Mass of an atom of an isotope compared with 1/12th of the mass of an atom of carbon-12

Question 2

Define relative atomic mass.

Answer 2

The mean weighted mass of an atom of an element compared with 1/12th of the mass of an atom of carbon-12

Question 3

Define relative molecular mass.

Answer 3

The weighted mean mass of a molecule of a comping compared with 1/12th of the mass of an atom of carbon-12

Question 4

Define relative formula mass.

Answer 4

The weighted mean mass of the formula unit of a compound compared with 1/12th of the mass of an atom of carbon-12

Question 5

Define strong acid.

Answer 5

An acid that dissociates completely in a solution

Question 6

Define weak acid.

Answer 6

An acid that dissociates partially in solution

Question 7

Define giant ionic lattice.

Answer 7

3D structure of oppositely charged ions, bonded together by strong ionic bonds.