The mole and the Avogadro constant Flashcards
(8 cards)
1
Q
What is a mole?
A
A measurement of an amount of substance, with the symbol ‘mol’
2
Q
What does a mole represent in terms of particles?
A
The amount of any substance containing as many particles as there are carbon atoms in 12g of 12C
3
Q
What is Avogadro’s constant (NA)?
A
The number of particles per mole of any substance, equal to 6.02 x 10²³
4
Q
What is molar mass?
A
The mass per mole of substance in g/mol
5
Q
What is molar volume?
A
The volume per mole of gas, which is 24.0 dm³/mol at room temperature and pressure
6
Q
How is concentration measured?
A
In mol dm⁻³
7
Q
Fill in the blank: Avogadro’s constant, NA, is in the _______ sheet, you don’t need to remember it.
A
data
8
Q
formular for conc includes volume and mole?
A
conc = mole/volume
