definitions galore (stoichiometry)

Question 1

relative atomic mass

Answer 1

average mass of one atom of an element, relative to one twelfth the mass of one atom of 12C

Question 2

relative isotopic mass

Answer 2

the mass of one atom of an isotope of an element, relative to one twelfth of the mass of one atom of 12C

Question 3

relative molecular mass

Answer 3

the average mass of one molecule of a substance, relative to one twelfth of the mass of one atom of 12C

Question 4

relative formula mass

Answer 4

the average mass of one formula unit of a substance, relative to one twelfth of the mass of one atom of 12C

Question 5

Avogrado’s Law

Answer 5

Equal volumes of all gases, under the same temperature and pressure, contain the same number of particles (atoms or molecules)

Question 6

empirical formula

Answer 6

the simplest formula which shows the ratio of the atoms of the different elements in the compound

Question 7

molecular formula

Answer 7

the formula which shows the actual number of atoms of each element in one molecule of the compound

Question 8

mole defiinition

Answer 8

One mole contains exactly 6.02 × 10^23 elementary entities