Amount of substance and the mole

• Created by: racheon
• Created on: 30-01-14 21:08
Define amount of substance and what it's used for.
The quantity whose unit is the mole. It is a means of counting atoms.
1 of 14
The number of atoms per mole of the carbon-12 isotope (6.02 x 10^23 mol-1)
2 of 14
Define mole.
The amount of any substance containing as many particles as there are carbon atoms in exactly 12g of the carbon-12 isotope.
3 of 14
What symbol is the amount of substance given?
n.
4 of 14
What is the amount of substance measured in?
Moles.
5 of 14
How much does 1 mole of sulfur weigh?
32.1g.
6 of 14
How much does 1 mole of iron weigh?
55.8g.
7 of 14
How much does 1 mole of copper weigh?
63.5g.
8 of 14
How much does 1 mole of lead weigh?
206.8g.
9 of 14
What is the mass of one mole of a element?
It's relative atomic mass in grams.
10 of 14
What can there be moles of? (3)
Atoms, molecules and ions.
11 of 14
Define molar mass and give the units it's measured in.
The mass per mole of a substance. The units are g mol-
12 of 14
How do you find molar mass?
By adding up all the relative atomic masses for each atom that make up a formula.
13 of 14
How are amount of substance (n), mass (m) and molar mass (M) linked?
n=m/M
14 of 14

Other cards in this set

Card 2

Back

The number of atoms per mole of the carbon-12 isotope (6.02 x 10^23 mol-1)

Define mole.

Card 4

Front

What symbol is the amount of substance given?

Card 5

Front

What is the amount of substance measured in?