01: mole concept and stoichiometry Flashcards
1
Q
relative atomic mass
A
the relative atomic mass of an element is the weighted average mass of the isotopes of the element compared to 1/12 of a C12 atom
2
Q
relative isotopic mass
A
the relative isotopic mass of an element is the mass of the isotope in comparison to 1/12 of a C12 atom
3
Q
mole
A
a mole contains exactly 6.02 x10^23 elementary entities
4
Q
molecular formula
A
the molecular formula of a compound is the formula that shows the exact number of atms of each element present in one molecule of a compound
5
Q
empirical formula
A
the empirical formula is the simplest formula that shows the number of atoms of each element present in a compound
