Quantitative Chemistry PAPER 1 Flashcards
(4 cards)
1
Q
What is the formula for calculating the % mass of an element in a compound?
A
Ar x number of atoms of that element
——————————————————– x100
Mr of the compound
2
Q
What is the relative formula mass?
A
the relative atomic mass of all the atoms in the molecular formula added together
3
Q
What is “the mole”?
A
name given to an amount of a substance
4
Q
What is the Avogadro constant?
A
6.02 x 10^23
