The Mole Flashcards
One mole of a substance
The amount of that substance that contains 6x10(23rd power) particles (atoms/molecules/ions) of that substance
The mass of one mole of an element is equal to…
Relative Atomic Mass in grams
Molar mass
The mass of one mole of a substance
What is the Relative Molecular Mass of a compound?
The sum of the Relative Atomic masses of all atoms in a molecule of a compound
Define Relative Atomic Mass
The average mass of one mole of that compound compared with one twelfth of the mass of one atom of the carbon-12 isotope
Name a compound that consists of ions rather than molecules
NaCl
What is the mass of one mole of a compound?
Relative Molecular mass in grams
What is used to measure Relative Atomic Masses, Relative Molecular masses and abundance’s of isotopes?
The mass spectrometer
What are all Avogadro’s number calculations based on?
One mole of a substance contains 6x10(23rd) particles of that substance
Why was the mole concept introduced?
To allow us to calculate the no. of atoms/molecules/ions in a particular amount of substance we have weighed out
