Stoichiometry Flashcards
1
Q
Define the molecular formula of a compound
A
the number and type of different atoms in one
molecule
2
Q
Define the empirical formula of a compound
A
the simplest whole number ratio of the different
atoms or ions in a compound
3
Q
Describe relative atomic mass, Ar
A
the average mass of the isotopes of an element compared to 1/12th of the mass of an atom of 12C
4
Q
Define relative molecular mass, Mr
A
the sum of the relative atomic masses. Relative formula
mass, Mr, will be used for ionic compounds
5
Q
what is Avogadro’s constant?
A
6 x 10 ^23
