Amount of substance and the mole Flashcards
1
Q
What is amount of substance?
A
The quantity whose unit is the mole (mol) and is used as a means of counting any species, such as atoms, ions and molecules.
2
Q
What is the mole?
A
The amount of any substance containing as many elementary particles as there are carbon atoms in exactly 12g of the carbon isotope.
3
Q
What is Avogadro’s constant?
A
The number of atoms per mole in the carbon-12 isotope
4
Q
What is the equation for number of particles?
A
Number of particles = moles x avogadro’s constant
5
Q
What is molar mass?
A
The mass per mole of a substance in its relative formula mass in g mol-1
6
Q
What is the equation for moles?
A
Moles (n) - mass (m) / molar mass (M)
