The Mole Flashcards
How is amount of substance measured?
Using moles
What is a mole?
The amount of substance that contains as many single particles as there are carbon-12 atoms in 12g of carbon-12
What is the actual number of atoms in 1 mol?
6.02 × 10^23
What is molar mass?
Molar mass is the mass per mole of a substance. For atoms of an element, the molar mass is simply the relative atomic mass g mol-1.
How is molar mass found for a compound?
Adding together the relative atomic masses of each atom in the formula e.g. 1 mole of CO2 = 44g
What is the concentration of a solution?
The amount of solute, in mol, dissolved in each 1dm3 of solution.
1 mol of a gas at rtp occupies approximately ?
24dm3 / 24000cm3
What can the ideal gas equation be used for?
Finding the amount of gas molecules in a volume at any temperature and pressure.
