C2.1.1 - Relative formula mass Flashcards
1
Q
What does relative atomic mass mean?
A
The mean mass of an atom of an element compared to 1/12 the mass of a carbon-12 atom
2
Q
What does relative formula mass mean?
A
The mean mass of a unit of substance compared to 1/12 the mass of a Carbon-12 atom
3
Q
What does the chemical formula of a substance tell you?
A
How many atoms of an element there are in a unit of substance
4
Q
What is the atomic mass of carbon
A
12g/mole
5
Q
What is the atomic mass of sodium?
A
23g/mole
6
Q
What is the atomic mass of lithium?
A
7g/mole
7
Q
What is the atomic mass of potassium?
A
39g/mole
8
Q
What is the atomic mass of calcium?
A
40g/mole
