Moles and molar mass Flashcards
1
Q
What is molar mass?
A
The mass of 1 mole of a substance is called it’s molar mass. Molar mass is relative formula mass in grams.
2
Q
What is relative atomic mass?
A
The relative atomic mass of an element is the average mass of an atom compared to the mass of 1/12 of an atom of carbon-12.
3
Q
Moles Unit
A
Mol
4
Q
Mass of chemical measurement
A
grams (g)
5
Q
Molar mass Unit
A
g/mol
6
Q
Thermal decomposition of a metal carbonate
A
Metal carbonate → metal oxide + carbon dioxide
7
Q
Number of moles Eq.
A
Number of moles = mass of chemical/molar mass
8
Q
Mass of chemical Eq.
A
Mass of chemical = number of moles x molar mass
