Unit 4 Stoichiometry Definitions Flashcards
(5 cards)
1
Q
Define: Relative atomic mass
A
the average mass of the isotopes of an element compared to 1/12th of the mass of an atom of 12C
2
Q
Define: Molecular formula
A
a compound is defined as the number and type of different atoms in one molecule
3
Q
Define: Relative molecular mass
A
the sum of the relative atomic masses. relative formula mass is used for ionic compounds
4
Q
Define: Relative formula mass
A
Mʳ is used for ionic compounds
5
Q
Define: Mole
A
1 mole contains 6.02 × 10₂₃ particles, e.g.: atoms, ions, molecules. this number is called the Avogadro constant
