Relative Mass and Amount of Substance Flashcards
1
Q
What is relative atomic mass?
A
The average mass of an atom of an element Relative to 1/12th the mass of an atom of C12
2
Q
How do you calculate Ar?
A
(Mass isotope x % abundance)/100
3
Q
What is relative molecular mass?
A
The mass of a molecule relative to 1/12th the mass of an atom of C12
4
Q
What is relative formula mass?
A
The mass of the formula relative to 1/12th the mass of an atom of C12
5
Q
What is Avogadro’s constant?
A
6.03x10^23
6
Q
What is the equation that links moles, number of atoms and Avogadro’s constant?
A
Number of atoms = Number of moles x Avogadro’s number
7
Q
A
