Amount of a substance Flashcards
1
Q
Relative Atomic mass (Ar)
A
average mass of one atom of an element compared to 1/12th of the mass of one atom of carbon-12
2
Q
Avogadro’s Constant L
A
Number of particles in anything
6.022 x 10^23
3
Q
Molecular mass Mr
A
Molecular mass is the average mass of a molecule relative to 1/12th the mass of an atom of Carbon-12
4
Q
A
5
Q
Molecular formula shows
A
The number and type of each atom in a molecule
6
Q
Empirical formula
A
The simplest whole number ratio of elements present in one molecule of a compound
7
Q
Percentage yield formula
A
Actual mass / theoretical mass
8
Q
Percentage atom economy
A
desired product / total reactant
9
Q
Why is high atom economy sustainable
A
Uses fewer natural resources
Creates less waste
10
Q
Water of crystallisation
A
When compounds form crystals with water in their structure
11
Q
A
