Chapter 1 - Formulae, equations and amounts of substance Flashcards
1
Q
What does Avogadro’s constant represent?
A
The number of atoms or molecules in one mole of a substance.
2
Q
Define the mole
A
The mole is the amount of a substance which contains the Avogadro number of atoms, molecules or groups of ions
3
Q
How do you calculate the number of particles?
A
Number of moles x Avogadro’s number
4
Q
How do you calculate moles?
A
Mass (grams) / Mr
