Relative atomic mass/ water of crystalisation Flashcards
1
Q
An atom has a relative atom mass. In what instance is the term relative formula mass used?
A
- Relative formula mass is used for ionic compounds.
2
Q
What is meant by relative atomic mass?
A
- The average mass of an atom of an element relative to 1/12th of mass of atom of carbon -12.
3
Q
What is meant by relative molecular mass?
A
- The average mass of a molecule relative to 1/12th of mass of atom of Carbon-12.
4
Q
What is the relative atomic mass unit?
A
g.mol⁻1
5
Q
What letter is mass number sometimes referred as?
A
- A.
6
Q
What letter is proton number sometimes referred as?
A
- Z.
7
Q
ter
What is “water of crystalisation?”
A
- Water that exists in salt crystals after the salt has been crystalised.
